Velvetleaf abutilon ( Abutilon theophrasti )  Collected in Boston, Massachusetts, 2016.

Velvetleaf abutilon (Abutilon theophrasti)
Collected in Boston, Massachusetts, 2016.

  Catclaw acacia ( Acacia greggii )  Collected in Las Vegas, USA, July 2016

Catclaw acacia (Acacia greggii)
Collected in Las Vegas, USA, July 2016

  Australian blackwood ( Acacia melanoxylon )  Collected in Los Angeles, USA, 2016.

Australian blackwood (Acacia melanoxylon)
Collected in Los Angeles, USA, 2016.

  Gum arabic tree ( Acacia nilotica )  Collected in Santa Barbara, California, 2011.

Gum arabic tree (Acacia nilotica)
Collected in Santa Barbara, California, 2011.

  Silver wattle ( Acacia podalyriifolia )  Collected in Los Angeles, California, 2011.

Silver wattle (Acacia podalyriifolia)
Collected in Los Angeles, California, 2011.

  Bottlebrush buckeye ( Aesculus parviflora )  Collected at Arnold Arboretum of Harvard University, 2012.

Bottlebrush buckeye (Aesculus parviflora)
Collected at Arnold Arboretum of Harvard University, 2012.

  Lily of the Nile ( Agapanthus praecox )  Collected in West Hollywood, California, 2010.

Lily of the Nile (Agapanthus praecox)
Collected in West Hollywood, California, 2010.

  Coco tamarind ( Albizia saman )  Collected in Kona, Hawaii, 2012.

Coco tamarind (Albizia saman)
Collected in Kona, Hawaii, 2012.

  Hollyhock ( Alcea rosea )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Hollyhock (Alcea rosea)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

   Allium sp.   Collected in Portland, Oregon, 2012.

Allium sp.
Collected in Portland, Oregon, 2012.

  Meadow foxtail ( Alopecurus pratensis )  Collected in Ascain, France, 2017.

Meadow foxtail (Alopecurus pratensis)
Collected in Ascain, France, 2017.

Alstroemeria isabellana.jpg
  Japanese anemone ( Anemone vitifolia )  Collected at University of California Botanical Garden at Berkeley, 2014.

Japanese anemone (Anemone vitifolia)
Collected at University of California Botanical Garden at Berkeley, 2014.

  Common kidney-vetch ( Anthyllis vulneria )  Collected at University of California Botanical Garden at Berkeley, 2014.

Common kidney-vetch (Anthyllis vulneria)
Collected at University of California Botanical Garden at Berkeley, 2014.

  Hawaiian prickly poppy ( Argemone glauca )  Collected at   Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

Hawaiian prickly poppy (Argemone glauca)
Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

   Aristolochia sp.   Collected at University of California Botanical Garden at Berkeley, 2015.

Aristolochia sp.
Collected at University of California Botanical Garden at Berkeley, 2015.

  False sea thrift ( Armeria pseudarmeria )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

False sea thrift (Armeria pseudarmeria)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Common milkweed ( Asclepias syriaca )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Common milkweed (Asclepias syriaca)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Coastal banksia ( Banksia integrifolia )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Coastal banksia (Banksia integrifolia)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Cream wild indigo ( Baptisia leucophea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Cream wild indigo (Baptisia leucophea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Orchid tree ( Bauhinia purpurea )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Orchid tree (Bauhinia purpurea)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

   Begonia sp.     Collected at Lotusland Gardens, Santa Barbara, California, 2011.

Begonia sp.
Collected at Lotusland Gardens, Santa Barbara, California, 2011.

  Lipstick tree ( Bixa orellana )  Collected in Hilo, Hawaii, 2012.

Lipstick tree (Bixa orellana)
Collected in Hilo, Hawaii, 2012.

   Bocconia latisepala    Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bocconia latisepala
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Kurrajong bottle tree ( Brachychiton populneus )  Collected in West Hollywood, California, 2010.

Kurrajong bottle tree (Brachychiton populneus)
Collected in West Hollywood, California, 2010.

  Chinese sweetshrub (Calycanthus chinensis)  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Chinese sweetshrub (Calycanthus chinensis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Pitard’s camellia ( Camellia pitardii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Pitard’s camellia (Camellia pitardii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

   Canna sp.   Collected in La Jolla, California, 2012.

Canna sp.
Collected in La Jolla, California, 2012.

  Shepherd’s purse ( Capsella bursa-pastoris )  Collected in Ascain, France, 2017.

Shepherd’s purse (Capsella bursa-pastoris)
Collected in Ascain, France, 2017.

  Love in a puff ( Cardiospermum halicacabum )  Collected in Boston, Massachusetts, 2011.

Love in a puff (Cardiospermum halicacabum)
Collected in Boston, Massachusetts, 2011.

  Asian hornbeam ( Carpinus tschonoskii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Asian hornbeam (Carpinus tschonoskii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Nussbaum's hickory ( Carya x nussbaumeri )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Nussbaum's hickory (Carya x nussbaumeri)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Feathery cassia ( Cassia artemisioides )  Collected in Highland Park, California, 2016.

Feathery cassia (Cassia artemisioides)
Collected in Highland Park, California, 2016.

  River sheoak ( Casuarina cunninghamiana )  Collected in Los Angeles, California, 2015.

River sheoak (Casuarina cunninghamiana)
Collected in Los Angeles, California, 2015.

  Cupid’s dart ( Catananche caerulea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Cupid’s dart (Catananche caerulea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Himalayan cedar ( Cedrus deodara )  Collected in Portland, Oregon, 2011.

Himalayan cedar (Cedrus deodara)
Collected in Portland, Oregon, 2011.

  Silk floss tree ( Ceiba speciosa )  Collected in Los Angeles, California, 2012.

Silk floss tree (Ceiba speciosa)
Collected in Los Angeles, California, 2012.

  Yellow knapweed ( Centaurea orientalis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Yellow knapweed (Centaurea orientalis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Wintersweet ( Chimonanthus nitens )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Wintersweet (Chimonanthus nitens)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Elsa ( Cirsium occidentale )  Collected in Portland, Oregon, 2014.

Elsa (Cirsium occidentale)
Collected in Portland, Oregon, 2014.

   Clematis "Westerplatte"   Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Clematis "Westerplatte"
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

  Traveler’s joy ( Clematis vitalba )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Traveler’s joy (Clematis vitalba)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

   Clematis sp.   Collected in Hampstead, London, 2017.

Clematis sp.
Collected in Hampstead, London, 2017.

  Lavender trumpet vine ( Clytostoma callistegioides )  Collected in Los Angeles, California, 2010.

Lavender trumpet vine (Clytostoma callistegioides)
Collected in Los Angeles, California, 2010.

   Colliguaja integerrima   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Colliguaja integerrima
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Bladder sienna ( Colutea arborescens )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bladder sienna (Colutea arborescens)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Carrotwood ( Cupaniopsis anacardioides )  Collected in Los Angeles, California, 2010.

Carrotwood (Cupaniopsis anacardioides)
Collected in Los Angeles, California, 2010.

  King Sago palm ( Cycas revoluta )  Collected in Los Angeles, California, 2016

King Sago palm (Cycas revoluta)
Collected in Los Angeles, California, 2016

  Umbrella sedge  (Cyperus eragrostis)     Collected in Los Angeles, California, 2011

Umbrella sedge (Cyperus eragrostis)
Collected in Los Angeles, California, 2011

  Jimson weed ( Datura stramonium )  Collected in Joshua Tree, California, 2010.

Jimson weed (Datura stramonium)
Collected in Joshua Tree, California, 2010.

  Royal poinciana ( Delonix regia )  Collected in Kona, Hawaii, 2012.

Royal poinciana (Delonix regia)
Collected in Kona, Hawaii, 2012.

   Dierama sp.   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Dierama sp.
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Giant spear lily ( Doryanthes pamleri )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Giant spear lily (Doryanthes pamleri)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Desert spike ( Eremostachys laciniata )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Desert spike (Eremostachys laciniata)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Green heath ( Erica sessiflora )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Green heath (Erica sessiflora)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Mexican sea holly ( Eryngium alternatum )  Collected in Los Angeles, California, 2013.

Mexican sea holly (Eryngium alternatum)
Collected in Los Angeles, California, 2013.

  Cockspur coral tree ( Erythrina crista-galli )  Collected in Waimea, Hawaii, 2012.

Cockspur coral tree (Erythrina crista-galli)
Collected in Waimea, Hawaii, 2012.

  Coral tree ( Erythrina herbacea )  Collected in Malibu, California, 2016.

Coral tree (Erythrina herbacea)
Collected in Malibu, California, 2016.

  Lemon eucalyptus ( Eucalyptus citriodora )  Collected in Los Angeles, California, 2010.

Lemon eucalyptus (Eucalyptus citriodora)
Collected in Los Angeles, California, 2010.

  Southern bluegum ( Eucalyptus globulus )  Collected in Los Angeles, California, 2010.

Southern bluegum (Eucalyptus globulus)
Collected in Los Angeles, California, 2010.

  Fleshy-flowered spindle tree ( Euonymus carnosus )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Fleshy-flowered spindle tree (Euonymus carnosus)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

  Japanese fatsis ( Fatsia japonica )  Collected in Los Angeles, California, 2016.

Japanese fatsis (Fatsia japonica)
Collected in Los Angeles, California, 2016.

  Roman shield ( Fibigia clypeata )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Roman shield (Fibigia clypeata)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  California flannel bush ( Fremontodendron californicum )  Collected in Los Angeles, California, 2011.

California flannel bush (Fremontodendron californicum)
Collected in Los Angeles, California, 2011.

   Gundelia sp   Collected in Los Angeles, California, 2015.

Gundelia sp
Collected in Los Angeles, California, 2015.

  Tree hakea ( Hakea eriantha )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Tree hakea (Hakea eriantha)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Dagger hakea ( Hakea teretifolia )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Dagger hakea (Hakea teretifolia)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Two-winged silverbell ( Halesia diptera )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Two-winged silverbell (Halesia diptera)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Corsican hellebore ( Helleborus argutifolius)   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Corsican hellebore (Helleborus argutifolius)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Red yucca ( Hesperaloe parviflora )  Collected in Los Angeles, California, 2016.

Red yucca (Hesperaloe parviflora)
Collected in Los Angeles, California, 2016.

  Splendid hibiscus ( Hibiscus splendens )  Collected at Lotusland Garden, Santa Barbara, California, 2011.

Splendid hibiscus (Hibiscus splendens)
Collected at Lotusland Garden, Santa Barbara, California, 2011.

  Sweet shade tree ( Hymenosporum flavum )  Collected in Los Angeles, California, 2014.

Sweet shade tree (Hymenosporum flavum)
Collected in Los Angeles, California, 2014.

  Morning glory ( Ipomoea purpurea )  Collected in Boston, Massachusetts, 2016.

Morning glory (Ipomoea purpurea)
Collected in Boston, Massachusetts, 2016.

  Gladwin iris ( Iris foetidissima )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Gladwin iris (Iris foetidissima)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Gladwin iris ( Iris foetidissima )  Collected in Ascain, France, 2017.

Gladwin iris (Iris foetidissima)
Collected in Ascain, France, 2017.

  Bladder pod ( Isomeris arborea )  Collected in Malibu, California, 2010.

Bladder pod (Isomeris arborea)
Collected in Malibu, California, 2010.

  Jacaranda ( Jacaranda mimosifolia )  Collected in Los Angeles, California, 2010.

Jacaranda (Jacaranda mimosifolia)
Collected in Los Angeles, California, 2010.

  Bollén ( Kageneckia oblonga )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bollén (Kageneckia oblonga)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Golden rain tree ( Koelreuteria paniculata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Golden rain tree (Koelreuteria paniculata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Hawaiian cotton tree ( Kokia drynarioides )  Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

Hawaiian cotton tree (Kokia drynarioides)
Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

   Leptospermum sp.   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Leptospermum sp.
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  White leadtree ( Leucaena leucocephala )  Collected in Kona, Hawaii, 2012.

White leadtree (Leucaena leucocephala)
Collected in Kona, Hawaii, 2012.

  Honest ( Lunaria annua )  Collected in Portland, Oregon, 2013.

Honest (Lunaria annua)
Collected in Portland, Oregon, 2013.

  Cucumber tree ( Magnolia acuminata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Cucumber tree (Magnolia acuminata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

  Southern magnolia ( Magnolia grandiflora )  Collected in Los Angeles, California, 2013.

Southern magnolia (Magnolia grandiflora)
Collected in Los Angeles, California, 2013.

  Lily magnolia ( Magnolia liliiflora )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Lily magnolia (Magnolia liliiflora)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Big leaf magnolia ( Magnolia macrophylla )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Big leaf magnolia (Magnolia macrophylla)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

  Sharp’s magnolia ( Magnolia sharpii )  Collected in Los Angeles, California, 2013.

Sharp’s magnolia (Magnolia sharpii)
Collected in Los Angeles, California, 2013.

  Saucer magnolia ( Magnolia soulangeana )  Collected in Pasadena, California, 2010.

Saucer magnolia (Magnolia soulangeana)
Collected in Pasadena, California, 2010.

  Umbrella magnolia ( Magnolia tripetala )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Umbrella magnolia (Magnolia tripetala)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

  Bay tree ( Magnolia virginiana)   Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Bay tree (Magnolia virginiana)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

  Wild cucumber ( Marah macrocarpus )  Collected in Los Angeles, California, 2009.

Wild cucumber (Marah macrocarpus)
Collected in Los Angeles, California, 2009.

  Hawaiian wood rose ( Merremia tuberosa )  Collected in Hilo, Hawaii, 2012.

Hawaiian wood rose (Merremia tuberosa)
Collected in Hilo, Hawaii, 2012.

  Dawn redwood ( Metasequoia glyptostroboides )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Dawn redwood (Metasequoia glyptostroboides)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Bergamot ( Monarda fistula )  Collected in Los Angeles, California, 2013.

Bergamot (Monarda fistula)
Collected in Los Angeles, California, 2013.

  Lotus ( Nelumbo nucifera )  Collected at Lotusland Garden, Santa Barbara, California, 2012.

Lotus (Nelumbo nucifera)
Collected at Lotusland Garden, Santa Barbara, California, 2012.

   Nerine huttoni   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Nerine huttoni
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Rosebay oleander ( Nerium oleander )  Collected in Los Angeles, California, 2012.

Rosebay oleander (Nerium oleander)
Collected in Los Angeles, California, 2012.

  Basil ( Ocimum basilicum )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Basil (Ocimum basilicum)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

  Garden peony ( Paeonia lactiflora )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Garden peony (Paeonia lactiflora)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Yellow tree peony ( Paeonia lutea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Yellow tree peony (Paeonia lutea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Opium poppy ( Papaver somniferum )  Collected in Hampstead, London, 2017.

Opium poppy (Papaver somniferum)
Collected in Hampstead, London, 2017.

  Long pricklyhead poppy ( Papaver argemone )  Collected in Los Angeles, California, 2015.

Long pricklyhead poppy (Papaver argemone)
Collected in Los Angeles, California, 2015.

  Oriental poppy ( Papaver orientale )  Collected in Portland, Oregon, 2012.

Oriental poppy (Papaver orientale)
Collected in Portland, Oregon, 2012.

  Common poppy ( Papaver rhoeas )  Collected in Hampstead, London, 2017.

Common poppy (Papaver rhoeas)
Collected in Hampstead, London, 2017.

  Foothill palo verde ( Parkinsonia microphylla )  Collected in Los Angeles, California, 2010.

Foothill palo verde (Parkinsonia microphylla)
Collected in Los Angeles, California, 2010.

  Empress tree ( Paulownia tomentosa )  Collected in Los Angeles, California, 2012.

Empress tree (Paulownia tomentosa)
Collected in Los Angeles, California, 2012.

  Jerusalem sage ( Phlomis lychnitis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Jerusalem sage (Phlomis lychnitis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  New Zealand flax ( Phormium tenax )  Collected in Los Angeles, California, 2011.

New Zealand flax (Phormium tenax)
Collected in Los Angeles, California, 2011.

  Johann’s pine ( Pinus johannis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Johann’s pine (Pinus johannis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Kiawe ( Prosopis pallida )  Collected in Kona, Hawaii, 2012.

Kiawe (Prosopis pallida)
Collected in Kona, Hawaii, 2012.

  Chinese pearlbloom ( Poliothyrsis sinensis )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Chinese pearlbloom (Poliothyrsis sinensis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Hop tree ( Ptelea trifoliata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Hop tree (Ptelea trifoliata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Chinese cork oak ( Quercus variabilis )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Chinese cork oak (Quercus variabilis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

  Staghorn sumac ( Rhus typhinia )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Staghorn sumac (Rhus typhinia)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Dog rose ( Rosa canina )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Dog rose (Rosa canina)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Paperbag bush ( Salazaria mexicana )  Collected in Joshua Tree, California, 2013.

Paperbag bush (Salazaria mexicana)
Collected in Joshua Tree, California, 2013.

  Mourningbride ( Scabiosa atropurpurea )  Collected at The Ecology Center, San Juan Capistrano, California, 2013.

Mourningbride (Scabiosa atropurpurea)
Collected at The Ecology Center, San Juan Capistrano, California, 2013.

  Giant sequoia ( Sesquoiadendron giganteum )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Giant sequoia (Sesquoiadendron giganteum)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

   Silene ampulata   Collected in Iraqi Kurdistan, 2012.

Silene ampulata
Collected in Iraqi Kurdistan, 2012.

  African tulip tree ( Spathodea campanulata )  Collected in Hilo, Hawaii, 2012.

African tulip tree (Spathodea campanulata)
Collected in Hilo, Hawaii, 2012.

  Beaked stewartia ( Stewartia rostrata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Beaked stewartia (Stewartia rostrata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Tamarind ( Tamarindus indica )  Collected in Kona, Hawaii, 2012.

Tamarind (Tamarindus indica)
Collected in Kona, Hawaii, 2012.

  Bird of paradise ( Strelizia reginae )  Collected in Los Angeles, California, 2012.

Bird of paradise (Strelizia reginae)
Collected in Los Angeles, California, 2012.

  Yellow trumpetbush ( Tecoma stans )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Yellow trumpetbush (Tecoma stans)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

   Ternstroemia tepezapote   Collected at University of California Botanical Garden at Berkeley, California, 2014.

Ternstroemia tepezapote
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Bee-bee tree ( Tetradium daniellii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2010.

Bee-bee tree (Tetradium daniellii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2010.

  Villous deadly carrot ( Thapsia villosa )  Collected at University of California Botanical Garden at Berkeley, California, 2014.

Villous deadly carrot (Thapsia villosa)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

  Yellow goat’s beard ( Tragopogon dubius )  Collected in Portland, Oregon, 2012.

Yellow goat’s beard (Tragopogon dubius)
Collected in Portland, Oregon, 2012.

  Nasturtium ( Tropaeolum majus )  Collected in Los Angeles, California, 2016.

Nasturtium (Tropaeolum majus)
Collected in Los Angeles, California, 2016.

  Unidentified  Collected in Hampstead, London, 2017.

Unidentified
Collected in Hampstead, London, 2017.

  Unidentified  Collected in Ascain, France, 2017.

Unidentified
Collected in Ascain, France, 2017.

  Mexican buckeye ( Ungnadia speciosa )  Collected in Pasadena, California, 2013.

Mexican buckeye (Ungnadia speciosa)
Collected in Pasadena, California, 2013.

  American wisteria ( Wisteria frutescens )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

American wisteria (Wisteria frutescens)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

  Japanese wisteria ( Wisteria floribunda )  Collected in Los Angeles, California, 2013.

Japanese wisteria (Wisteria floribunda)
Collected in Los Angeles, California, 2013.

  Velvetleaf abutilon ( Abutilon theophrasti )  Collected in Boston, Massachusetts, 2016.
  Catclaw acacia ( Acacia greggii )  Collected in Las Vegas, USA, July 2016
  Australian blackwood ( Acacia melanoxylon )  Collected in Los Angeles, USA, 2016.
  Gum arabic tree ( Acacia nilotica )  Collected in Santa Barbara, California, 2011.
  Silver wattle ( Acacia podalyriifolia )  Collected in Los Angeles, California, 2011.
  Bottlebrush buckeye ( Aesculus parviflora )  Collected at Arnold Arboretum of Harvard University, 2012.
  Lily of the Nile ( Agapanthus praecox )  Collected in West Hollywood, California, 2010.
  Coco tamarind ( Albizia saman )  Collected in Kona, Hawaii, 2012.
  Hollyhock ( Alcea rosea )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.
   Allium sp.   Collected in Portland, Oregon, 2012.
  Meadow foxtail ( Alopecurus pratensis )  Collected in Ascain, France, 2017.
Alstroemeria isabellana.jpg
  Japanese anemone ( Anemone vitifolia )  Collected at University of California Botanical Garden at Berkeley, 2014.
  Common kidney-vetch ( Anthyllis vulneria )  Collected at University of California Botanical Garden at Berkeley, 2014.
  Hawaiian prickly poppy ( Argemone glauca )  Collected at   Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.
   Aristolochia sp.   Collected at University of California Botanical Garden at Berkeley, 2015.
  False sea thrift ( Armeria pseudarmeria )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Common milkweed ( Asclepias syriaca )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Coastal banksia ( Banksia integrifolia )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Cream wild indigo ( Baptisia leucophea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Orchid tree ( Bauhinia purpurea )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.
   Begonia sp.     Collected at Lotusland Gardens, Santa Barbara, California, 2011.
  Lipstick tree ( Bixa orellana )  Collected in Hilo, Hawaii, 2012.
   Bocconia latisepala    Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Kurrajong bottle tree ( Brachychiton populneus )  Collected in West Hollywood, California, 2010.
  Chinese sweetshrub (Calycanthus chinensis)  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Pitard’s camellia ( Camellia pitardii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
   Canna sp.   Collected in La Jolla, California, 2012.
  Shepherd’s purse ( Capsella bursa-pastoris )  Collected in Ascain, France, 2017.
  Love in a puff ( Cardiospermum halicacabum )  Collected in Boston, Massachusetts, 2011.
  Asian hornbeam ( Carpinus tschonoskii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Nussbaum's hickory ( Carya x nussbaumeri )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Feathery cassia ( Cassia artemisioides )  Collected in Highland Park, California, 2016.
  River sheoak ( Casuarina cunninghamiana )  Collected in Los Angeles, California, 2015.
  Cupid’s dart ( Catananche caerulea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Himalayan cedar ( Cedrus deodara )  Collected in Portland, Oregon, 2011.
  Silk floss tree ( Ceiba speciosa )  Collected in Los Angeles, California, 2012.
  Yellow knapweed ( Centaurea orientalis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Wintersweet ( Chimonanthus nitens )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Elsa ( Cirsium occidentale )  Collected in Portland, Oregon, 2014.
   Clematis "Westerplatte"   Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.
  Traveler’s joy ( Clematis vitalba )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.
   Clematis sp.   Collected in Hampstead, London, 2017.
  Lavender trumpet vine ( Clytostoma callistegioides )  Collected in Los Angeles, California, 2010.
   Colliguaja integerrima   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Bladder sienna ( Colutea arborescens )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Carrotwood ( Cupaniopsis anacardioides )  Collected in Los Angeles, California, 2010.
  King Sago palm ( Cycas revoluta )  Collected in Los Angeles, California, 2016
  Umbrella sedge  (Cyperus eragrostis)     Collected in Los Angeles, California, 2011
  Jimson weed ( Datura stramonium )  Collected in Joshua Tree, California, 2010.
  Royal poinciana ( Delonix regia )  Collected in Kona, Hawaii, 2012.
   Dierama sp.   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Giant spear lily ( Doryanthes pamleri )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Desert spike ( Eremostachys laciniata )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Green heath ( Erica sessiflora )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Mexican sea holly ( Eryngium alternatum )  Collected in Los Angeles, California, 2013.
  Cockspur coral tree ( Erythrina crista-galli )  Collected in Waimea, Hawaii, 2012.
  Coral tree ( Erythrina herbacea )  Collected in Malibu, California, 2016.
  Lemon eucalyptus ( Eucalyptus citriodora )  Collected in Los Angeles, California, 2010.
  Southern bluegum ( Eucalyptus globulus )  Collected in Los Angeles, California, 2010.
  Fleshy-flowered spindle tree ( Euonymus carnosus )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.
  Japanese fatsis ( Fatsia japonica )  Collected in Los Angeles, California, 2016.
  Roman shield ( Fibigia clypeata )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  California flannel bush ( Fremontodendron californicum )  Collected in Los Angeles, California, 2011.
   Gundelia sp   Collected in Los Angeles, California, 2015.
  Tree hakea ( Hakea eriantha )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Dagger hakea ( Hakea teretifolia )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Two-winged silverbell ( Halesia diptera )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Corsican hellebore ( Helleborus argutifolius)   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Red yucca ( Hesperaloe parviflora )  Collected in Los Angeles, California, 2016.
  Splendid hibiscus ( Hibiscus splendens )  Collected at Lotusland Garden, Santa Barbara, California, 2011.
  Sweet shade tree ( Hymenosporum flavum )  Collected in Los Angeles, California, 2014.
  Morning glory ( Ipomoea purpurea )  Collected in Boston, Massachusetts, 2016.
  Gladwin iris ( Iris foetidissima )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Gladwin iris ( Iris foetidissima )  Collected in Ascain, France, 2017.
  Bladder pod ( Isomeris arborea )  Collected in Malibu, California, 2010.
  Jacaranda ( Jacaranda mimosifolia )  Collected in Los Angeles, California, 2010.
  Bollén ( Kageneckia oblonga )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Golden rain tree ( Koelreuteria paniculata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Hawaiian cotton tree ( Kokia drynarioides )  Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.
   Leptospermum sp.   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  White leadtree ( Leucaena leucocephala )  Collected in Kona, Hawaii, 2012.
  Honest ( Lunaria annua )  Collected in Portland, Oregon, 2013.
  Cucumber tree ( Magnolia acuminata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.
  Southern magnolia ( Magnolia grandiflora )  Collected in Los Angeles, California, 2013.
  Lily magnolia ( Magnolia liliiflora )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Big leaf magnolia ( Magnolia macrophylla )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.
  Sharp’s magnolia ( Magnolia sharpii )  Collected in Los Angeles, California, 2013.
  Saucer magnolia ( Magnolia soulangeana )  Collected in Pasadena, California, 2010.
  Umbrella magnolia ( Magnolia tripetala )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.
  Bay tree ( Magnolia virginiana)   Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.
  Wild cucumber ( Marah macrocarpus )  Collected in Los Angeles, California, 2009.
  Hawaiian wood rose ( Merremia tuberosa )  Collected in Hilo, Hawaii, 2012.
  Dawn redwood ( Metasequoia glyptostroboides )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Bergamot ( Monarda fistula )  Collected in Los Angeles, California, 2013.
  Lotus ( Nelumbo nucifera )  Collected at Lotusland Garden, Santa Barbara, California, 2012.
   Nerine huttoni   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Rosebay oleander ( Nerium oleander )  Collected in Los Angeles, California, 2012.
  Basil ( Ocimum basilicum )  Collected at The Ecology Center, San Juan Capistrano, California, 2012.
  Garden peony ( Paeonia lactiflora )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Yellow tree peony ( Paeonia lutea )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Opium poppy ( Papaver somniferum )  Collected in Hampstead, London, 2017.
  Long pricklyhead poppy ( Papaver argemone )  Collected in Los Angeles, California, 2015.
  Oriental poppy ( Papaver orientale )  Collected in Portland, Oregon, 2012.
  Common poppy ( Papaver rhoeas )  Collected in Hampstead, London, 2017.
  Foothill palo verde ( Parkinsonia microphylla )  Collected in Los Angeles, California, 2010.
  Empress tree ( Paulownia tomentosa )  Collected in Los Angeles, California, 2012.
  Jerusalem sage ( Phlomis lychnitis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  New Zealand flax ( Phormium tenax )  Collected in Los Angeles, California, 2011.
  Johann’s pine ( Pinus johannis )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Kiawe ( Prosopis pallida )  Collected in Kona, Hawaii, 2012.
  Chinese pearlbloom ( Poliothyrsis sinensis )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Hop tree ( Ptelea trifoliata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Chinese cork oak ( Quercus variabilis )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.
  Staghorn sumac ( Rhus typhinia )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Dog rose ( Rosa canina )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Paperbag bush ( Salazaria mexicana )  Collected in Joshua Tree, California, 2013.
  Mourningbride ( Scabiosa atropurpurea )  Collected at The Ecology Center, San Juan Capistrano, California, 2013.
  Giant sequoia ( Sesquoiadendron giganteum )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
   Silene ampulata   Collected in Iraqi Kurdistan, 2012.
  African tulip tree ( Spathodea campanulata )  Collected in Hilo, Hawaii, 2012.
  Beaked stewartia ( Stewartia rostrata )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Tamarind ( Tamarindus indica )  Collected in Kona, Hawaii, 2012.
  Bird of paradise ( Strelizia reginae )  Collected in Los Angeles, California, 2012.
  Yellow trumpetbush ( Tecoma stans )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
   Ternstroemia tepezapote   Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Bee-bee tree ( Tetradium daniellii )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2010.
  Villous deadly carrot ( Thapsia villosa )  Collected at University of California Botanical Garden at Berkeley, California, 2014.
  Yellow goat’s beard ( Tragopogon dubius )  Collected in Portland, Oregon, 2012.
  Nasturtium ( Tropaeolum majus )  Collected in Los Angeles, California, 2016.
  Unidentified  Collected in Hampstead, London, 2017.
  Unidentified  Collected in Ascain, France, 2017.
  Mexican buckeye ( Ungnadia speciosa )  Collected in Pasadena, California, 2013.
  American wisteria ( Wisteria frutescens )  Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.
  Japanese wisteria ( Wisteria floribunda )  Collected in Los Angeles, California, 2013.

Velvetleaf abutilon (Abutilon theophrasti)
Collected in Boston, Massachusetts, 2016.

Catclaw acacia (Acacia greggii)
Collected in Las Vegas, USA, July 2016

Australian blackwood (Acacia melanoxylon)
Collected in Los Angeles, USA, 2016.

Gum arabic tree (Acacia nilotica)
Collected in Santa Barbara, California, 2011.

Silver wattle (Acacia podalyriifolia)
Collected in Los Angeles, California, 2011.

Bottlebrush buckeye (Aesculus parviflora)
Collected at Arnold Arboretum of Harvard University, 2012.

Lily of the Nile (Agapanthus praecox)
Collected in West Hollywood, California, 2010.

Coco tamarind (Albizia saman)
Collected in Kona, Hawaii, 2012.

Hollyhock (Alcea rosea)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Allium sp.
Collected in Portland, Oregon, 2012.

Meadow foxtail (Alopecurus pratensis)
Collected in Ascain, France, 2017.

Japanese anemone (Anemone vitifolia)
Collected at University of California Botanical Garden at Berkeley, 2014.

Common kidney-vetch (Anthyllis vulneria)
Collected at University of California Botanical Garden at Berkeley, 2014.

Hawaiian prickly poppy (Argemone glauca)
Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

Aristolochia sp.
Collected at University of California Botanical Garden at Berkeley, 2015.

False sea thrift (Armeria pseudarmeria)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Common milkweed (Asclepias syriaca)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Coastal banksia (Banksia integrifolia)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Cream wild indigo (Baptisia leucophea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Orchid tree (Bauhinia purpurea)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Begonia sp.
Collected at Lotusland Gardens, Santa Barbara, California, 2011.

Lipstick tree (Bixa orellana)
Collected in Hilo, Hawaii, 2012.

Bocconia latisepala
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Kurrajong bottle tree (Brachychiton populneus)
Collected in West Hollywood, California, 2010.

Chinese sweetshrub (Calycanthus chinensis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Pitard’s camellia (Camellia pitardii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Canna sp.
Collected in La Jolla, California, 2012.

Shepherd’s purse (Capsella bursa-pastoris)
Collected in Ascain, France, 2017.

Love in a puff (Cardiospermum halicacabum)
Collected in Boston, Massachusetts, 2011.

Asian hornbeam (Carpinus tschonoskii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Nussbaum's hickory (Carya x nussbaumeri)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Feathery cassia (Cassia artemisioides)
Collected in Highland Park, California, 2016.

River sheoak (Casuarina cunninghamiana)
Collected in Los Angeles, California, 2015.

Cupid’s dart (Catananche caerulea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Himalayan cedar (Cedrus deodara)
Collected in Portland, Oregon, 2011.

Silk floss tree (Ceiba speciosa)
Collected in Los Angeles, California, 2012.

Yellow knapweed (Centaurea orientalis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Wintersweet (Chimonanthus nitens)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Elsa (Cirsium occidentale)
Collected in Portland, Oregon, 2014.

Clematis "Westerplatte"
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Traveler’s joy (Clematis vitalba)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Clematis sp.
Collected in Hampstead, London, 2017.

Lavender trumpet vine (Clytostoma callistegioides)
Collected in Los Angeles, California, 2010.

Colliguaja integerrima
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bladder sienna (Colutea arborescens)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Carrotwood (Cupaniopsis anacardioides)
Collected in Los Angeles, California, 2010.

King Sago palm (Cycas revoluta)
Collected in Los Angeles, California, 2016

Umbrella sedge (Cyperus eragrostis)
Collected in Los Angeles, California, 2011

Jimson weed (Datura stramonium)
Collected in Joshua Tree, California, 2010.

Royal poinciana (Delonix regia)
Collected in Kona, Hawaii, 2012.

Dierama sp.
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Giant spear lily (Doryanthes pamleri)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Desert spike (Eremostachys laciniata)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Green heath (Erica sessiflora)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Mexican sea holly (Eryngium alternatum)
Collected in Los Angeles, California, 2013.

Cockspur coral tree (Erythrina crista-galli)
Collected in Waimea, Hawaii, 2012.

Coral tree (Erythrina herbacea)
Collected in Malibu, California, 2016.

Lemon eucalyptus (Eucalyptus citriodora)
Collected in Los Angeles, California, 2010.

Southern bluegum (Eucalyptus globulus)
Collected in Los Angeles, California, 2010.

Fleshy-flowered spindle tree (Euonymus carnosus)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Japanese fatsis (Fatsia japonica)
Collected in Los Angeles, California, 2016.

Roman shield (Fibigia clypeata)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

California flannel bush (Fremontodendron californicum)
Collected in Los Angeles, California, 2011.

Gundelia sp
Collected in Los Angeles, California, 2015.

Tree hakea (Hakea eriantha)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Dagger hakea (Hakea teretifolia)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Two-winged silverbell (Halesia diptera)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Corsican hellebore (Helleborus argutifolius)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Red yucca (Hesperaloe parviflora)
Collected in Los Angeles, California, 2016.

Splendid hibiscus (Hibiscus splendens)
Collected at Lotusland Garden, Santa Barbara, California, 2011.

Sweet shade tree (Hymenosporum flavum)
Collected in Los Angeles, California, 2014.

Morning glory (Ipomoea purpurea)
Collected in Boston, Massachusetts, 2016.

Gladwin iris (Iris foetidissima)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Gladwin iris (Iris foetidissima)
Collected in Ascain, France, 2017.

Bladder pod (Isomeris arborea)
Collected in Malibu, California, 2010.

Jacaranda (Jacaranda mimosifolia)
Collected in Los Angeles, California, 2010.

Bollén (Kageneckia oblonga)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Golden rain tree (Koelreuteria paniculata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Hawaiian cotton tree (Kokia drynarioides)
Collected at Amy B. H. Greenwell Ethnobotanical Garden, Captain Cook, Hawaii, 2012.

Leptospermum sp.
Collected at University of California Botanical Garden at Berkeley, California, 2014.

White leadtree (Leucaena leucocephala)
Collected in Kona, Hawaii, 2012.

Honest (Lunaria annua)
Collected in Portland, Oregon, 2013.

Cucumber tree (Magnolia acuminata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Southern magnolia (Magnolia grandiflora)
Collected in Los Angeles, California, 2013.

Lily magnolia (Magnolia liliiflora)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Big leaf magnolia (Magnolia macrophylla)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Sharp’s magnolia (Magnolia sharpii)
Collected in Los Angeles, California, 2013.

Saucer magnolia (Magnolia soulangeana)
Collected in Pasadena, California, 2010.

Umbrella magnolia (Magnolia tripetala)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Bay tree (Magnolia virginiana)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2016.

Wild cucumber (Marah macrocarpus)
Collected in Los Angeles, California, 2009.

Hawaiian wood rose (Merremia tuberosa)
Collected in Hilo, Hawaii, 2012.

Dawn redwood (Metasequoia glyptostroboides)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bergamot (Monarda fistula)
Collected in Los Angeles, California, 2013.

Lotus (Nelumbo nucifera)
Collected at Lotusland Garden, Santa Barbara, California, 2012.

Nerine huttoni
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Rosebay oleander (Nerium oleander)
Collected in Los Angeles, California, 2012.

Basil (Ocimum basilicum)
Collected at The Ecology Center, San Juan Capistrano, California, 2012.

Garden peony (Paeonia lactiflora)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Yellow tree peony (Paeonia lutea)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Opium poppy (Papaver somniferum)
Collected in Hampstead, London, 2017.

Long pricklyhead poppy (Papaver argemone)
Collected in Los Angeles, California, 2015.

Oriental poppy (Papaver orientale)
Collected in Portland, Oregon, 2012.

Common poppy (Papaver rhoeas)
Collected in Hampstead, London, 2017.

Foothill palo verde (Parkinsonia microphylla)
Collected in Los Angeles, California, 2010.

Empress tree (Paulownia tomentosa)
Collected in Los Angeles, California, 2012.

Jerusalem sage (Phlomis lychnitis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

New Zealand flax (Phormium tenax)
Collected in Los Angeles, California, 2011.

Johann’s pine (Pinus johannis)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Kiawe (Prosopis pallida)
Collected in Kona, Hawaii, 2012.

Chinese pearlbloom (Poliothyrsis sinensis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Hop tree (Ptelea trifoliata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Chinese cork oak (Quercus variabilis)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2012.

Staghorn sumac (Rhus typhinia)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Dog rose (Rosa canina)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Paperbag bush (Salazaria mexicana)
Collected in Joshua Tree, California, 2013.

Mourningbride (Scabiosa atropurpurea)
Collected at The Ecology Center, San Juan Capistrano, California, 2013.

Giant sequoia (Sesquoiadendron giganteum)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Silene ampulata
Collected in Iraqi Kurdistan, 2012.

African tulip tree (Spathodea campanulata)
Collected in Hilo, Hawaii, 2012.

Beaked stewartia (Stewartia rostrata)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Tamarind (Tamarindus indica)
Collected in Kona, Hawaii, 2012.

Bird of paradise (Strelizia reginae)
Collected in Los Angeles, California, 2012.

Yellow trumpetbush (Tecoma stans)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Ternstroemia tepezapote
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Bee-bee tree (Tetradium daniellii)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2010.

Villous deadly carrot (Thapsia villosa)
Collected at University of California Botanical Garden at Berkeley, California, 2014.

Yellow goat’s beard (Tragopogon dubius)
Collected in Portland, Oregon, 2012.

Nasturtium (Tropaeolum majus)
Collected in Los Angeles, California, 2016.

Unidentified
Collected in Hampstead, London, 2017.

Unidentified
Collected in Ascain, France, 2017.

Mexican buckeye (Ungnadia speciosa)
Collected in Pasadena, California, 2013.

American wisteria (Wisteria frutescens)
Collected at Arnold Arboretum of Harvard University, Boston, Massachusetts, 2011.

Japanese wisteria (Wisteria floribunda)
Collected in Los Angeles, California, 2013.

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