Apocynaceae
Adenium obesum (Forssk.) Roem. & Schult.
Adenium obesum (Forssk.) Roem. & Schult.
Adenium obesum, the desert rose, is a succulent shrub used as poison for hunting and popular as an ornamental houseplant and bonsai.
Allamanda blanchetii A.DC.
Allamanda blanchetii A.DC.
Allamanda blanchetii is a Brazilian perennial ornamental flowering plant with purple blooms and usable stem fiber.
Allamanda cathartica L.
Allamanda cathartica L.
Allamanda cathartica is an Apocynaceae flowering plant native to South America, often cultivated as a houseplant.
Alstonia scholaris (L.) R.Br.
Alstonia scholaris (L.) R.Br.
Alstonia scholaris is a large toxic tree native to tropical and subtropical Asia to Australia with documented traditional uses.
Alyxia buxifolia R.Br.
Alyxia buxifolia R.Br.
Alyxia buxifolia is a hardy Australian woody shrub with toxic fruit, used historically by First Nations people to treat dysentery.
Alyxia ruscifolia R.Br.
Alyxia ruscifolia R.Br.
Alyxia ruscifolia R.Br. is a shrub with whorled glossy leaves, fragrant white flowers, and orange to red fruit.
Amsonia ciliata Walter
Amsonia ciliata Walter
Amsonia ciliata (fringed bluestar) is a North American flowering plant in the dogbane family, first described in 1788.
Amsonia tabernaemontana Walter
Amsonia tabernaemontana Walter
Eastern bluestar (Amsonia tabernaemontana Walter) is a North American flowering plant in the Apocynaceae family found in central and eastern North America.
Amsonia tomentosa Torr. & Frém.
Amsonia tomentosa Torr. & Frém.
Amsonia tomentosa, woolly bluestar, is a flowering plant native to the southwestern US and northern Mexico.
Ancylobothrys capensis (Oliv.) Pichon
Ancylobothrys capensis (Oliv.) Pichon
Ancylobothrys capensis, wild apricot, is an evergreen Southern African Apocynaceae creeper that bears edible sweet acidic fruit.
Angadenia berteroi (A.DC.) Miers
Angadenia berteroi (A.DC.) Miers
Angadenia berteroi, the pineland golden trumpet, is an Apocynaceae species first described in 1844, native to parts of the US and Caribbean.
Apocynum androsaemifolium L.
Apocynum androsaemifolium L.
Apocynum androsaemifolium is a poisonous perennial herb widespread across North America and northeast Mexico with a history of human medicinal and practical use.
Apocynum cannabinum L.
Apocynum cannabinum L.
Apocynum cannabinum is a toxic North American plant with edible seeds and a history of medicinal use.
Araujia odorata (Hook. & Arn.) Fontella & Goyder
Araujia odorata (Hook. & Arn.) Fontella & Goyder
Araujia odorata is a South American Apocynaceae plant widely cultivated as an ornamental.
Araujia sericifera Brot.
Araujia sericifera Brot.
Araujia sericifera Brot. is a creeping toxic climbing vine native to South America that is often invasive outside its native range.
Asclepias albicans S.Watson
Asclepias albicans S.Watson
Asclepias albicans (whitestem milkweed) is a desert milkweed that acts as a larval host for monarch and queen butterflies.
Asclepias amplexicaulis Sm.
Asclepias amplexicaulis Sm.
Asclepias amplexicaulis is a toxic North American milkweed that flowers spring to summer and tolerates repeated burns.
Asclepias angustifolia Schweig.
Asclepias angustifolia Schweig.
Asclepias angustifolia, or Arizona milkweed, is a rare Arizona perennial that serves as a critical host plant for Monarch butterflies.
Asclepias asperula (Decne.) Woodson
Asclepias asperula (Decne.) Woodson
Asclepias asperula, commonly antelope horns milkweed, is a toxic perennial that is a key host for monarch caterpillars.
Asclepias californica Greene
Asclepias californica Greene
Asclepias californica is a California-native perennial milkweed, a key monarch host that supports regional pollinator health.
Asclepias cinerea Walter
Asclepias cinerea Walter
Asclepias cinerea Walter is a perennial milkweed herb native to the US Southeast Coastal Plain that hosts monarch and queen butterflies.
Asclepias cordifolia (Benth.) Jeps.
Asclepias cordifolia (Benth.) Jeps.
Asclepias cordifolia, or heart-leaf milkweed, is a perennial native milkweed with historical uses by Native Californian groups and ecological value for monarch butterflies.
Asclepias cryptoceras S.Watson
Asclepias cryptoceras S.Watson
Asclepias cryptoceras, a North American Great Basin milkweed, was used medicinally by the Northern Paiute people.
Asclepias curassavica L.
Asclepias curassavica L.
Asclepias curassavica, tropical milkweed, is a milkweed species cultivated for butterflies that disrupts nonnative monarch migrations.
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