Apocynaceae
Asclepias subverticillata (A.Gray) Vail
Asclepias subverticillata (A.Gray) Vail
Asclepias subverticillata is a toxic North American milkweed with documented traditional uses among the Zuni people.
Asclepias sullivantii Engelm. ex A.Gray
Asclepias sullivantii Engelm. ex A.Gray
Asclepias sullivantii, Sullivant's milkweed, is a threatened perennial prairie plant that hosts monarch caterpillars.
Asclepias syriaca L.
Asclepias syriaca L.
Asclepias syriaca is a key milkweed food source for monarch butterflies, cultivated for pollinator habitat and with historical uses.
Asclepias texana A.Heller
Asclepias texana A.Heller
Asclepias texana (Texas milkweed) is a shrubby perennial flowering plant native to parts of Mexico and the US.
Asclepias tomentosa Elliott
Asclepias tomentosa Elliott
Asclepias tomentosa (tuba milkweed) is a perennial dicot flowering milkweed native to the southeastern US.
Asclepias tuberosa L.
Asclepias tuberosa L.
Asclepias tuberosa L., commonly butterfly weed, is a perennial milkweed with bright flowers, toxic properties, and historic medicinal and food uses.
Asclepias variegata L.
Asclepias variegata L.
Asclepias variegata is a perennial herb with white flowers that grows in upland North American woodlands and tolerates regular fire.
Asclepias verticillata L.
Asclepias verticillata L.
Asclepias verticillata, the whorled milkweed, is a North American native perennial milkweed toxic to livestock and used by Native Americans for medicine.
Asclepias viridiflora Raf.
Asclepias viridiflora Raf.
Asclepias viridiflora, or green comet milkweed, is a widely distributed North American milkweed with greenish-white flowers.
Asclepias viridis Walter
Asclepias viridis Walter
Asclepias viridis is a North American milkweed that is a key host plant for monarch butterflies.
Aspidosperma quebracho-blanco Schltdl.
Aspidosperma quebracho-blanco Schltdl.
Aspidosperma quebracho-blanco is an evergreen tree native to multiple South American ecoregions, growing in dry deciduous forests on clay soils.
Calotropis gigantea (L.) W.T.Aiton
Calotropis gigantea (L.) W.T.Aiton
Calotropis gigantea is a poisonous milk-bearing plant used for rituals, fiber, folk medicine, and studied for anti-cancer properties.
Calotropis procera (Aiton) W.T.Aiton
Calotropis procera (Aiton) W.T.Aiton
Calotropis procera is a toxic flowering milkweed relative native to Africa, Asia, that feeds monarch caterpillars where introduced.
Carissa bispinosa (L.) Desf. ex Brenan
Carissa bispinosa (L.) Desf. ex Brenan
Carissa bispinosa is a shrub or small tree native to eastern and southern Africa, with fragrant white flowers and red ripe fruit.
Carissa haematocarpa (Eckl.) A.DC.
Carissa haematocarpa (Eckl.) A.DC.
Carissa haematocarpa is a drought-tolerant southern African spiny shrub with edible ripe fruits and multiple human uses.
Carissa macrocarpa (Eckl.) A.DC.
Carissa macrocarpa (Eckl.) A.DC.
Carissa macrocarpa, or Natal plum, is an African evergreen shrub grown for ornament and its edible fruit.
Carissa ovata R.Br.
Carissa ovata R.Br.
Carissa spinarum (conkerberry) is an Apocynaceae shrub with edible ripe fruit, wide distribution, and both weedy and restorative uses.
Carissa spinarum L.
Carissa spinarum L.
Carissa spinarum (conkerberry) is an Apocynaceae shrub widespread across Old World tropics, with edible ripe fruit and diverse ecological roles.
Cascabela thevetia (L.) Lippold
Cascabela thevetia (L.) Lippold
Cascabela thevetia is a toxic evergreen tropical shrub or small tree grown ornamentally, with cardiac glycoside toxins.
Catharanthus roseus (L.) G.Don
Catharanthus roseus (L.) G.Don
Catharanthus roseus is a toxic flowering plant that produces the cancer-fighting alkaloids vinblastine and vincristine.
Cerbera manghas L.
Cerbera manghas L.
Cerbera manghas L. is a toxic plant with historical ordeal use and potential chemotherapeutic properties.
Ceropegia gigantea (N.E.Br.) Bruyns
Ceropegia gigantea (N.E.Br.) Bruyns
Ceropegia gigantea, an African rock-dwelling herb, is cultivated ornamentally, invasive in Neotropical arid ecosystems, self - compatible, and attracts flies with a meat - smelling substance for pollination.
Chthamalia pubiflora Decne.
Chthamalia pubiflora Decne.
Chthamalia pubiflora is a perennial flowering vine in the Apocynaceae family native to parts of Georgia and Florida.
Cryptostegia grandiflora (Roxb.) R.Br.
Cryptostegia grandiflora (Roxb.) R.Br.
Cryptostegia grandiflora, rubber vine, is a variable-height woody plant that has become a major weed in Australia due to local extreme rainfall variability.
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