Plants — 23,046 Species
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All Plants Species
Arum italicum Mill.
Arum italicum Mill.
Arum italicum Mill. is a poisonous ornamental aroid with variable subspecies native across Europe, North Africa, and West Asia.
Arum maculatum L.
Arum maculatum L.
Arum maculatum L., also called cuckoo pint, is a poisonous woodland monocot that traps insects for pollination.
Arum orientale M.Bieb.
Arum orientale M.Bieb.
Arum orientale M.Bieb. is a poisonous aroid with insect-trapping flowers that grows in moist partially shaded woodlands.
Aruncus dioicus (Walter) Fernald
Aruncus dioicus (Walter) Fernald
Aruncus dioicus is a tall ornamental flowering plant with edible young shoots and documented medicinal and cytotoxic properties.
Arundina graminifolia (D.Don) Hochr.
Arundina graminifolia (D.Don) Hochr.
Arundina graminifolia is a terrestrial perennial orchid with distinct growth, flower traits, and varying status across regions.
Arundinaria gigantea (Walter) Muhl.
Arundinaria gigantea (Walter) Muhl.
Arundinaria gigantea (giant river cane) is a native North American fire-dependent bamboo with great ecological and cultural value, now greatly reduced in range.
Arundinaria tecta (Walter) Muhl.
Arundinaria tecta (Walter) Muhl.
Arundinaria tecta is a low bamboo native to the southeastern US that forms the critically endangered canebrake ecosystem.
Arundo donax L.
Arundo donax L.
Arundo donax L. (giant reed) is a large perennial grass with description, ecology, cultivation and uses detailed here.
Asarum canadense L.
Asarum canadense L.
Asarum canadense, or Canada wild ginger, is a herbaceous perennial native to eastern North American deciduous forests, used historically by Native Americans.
Asarum caudatum Lindl.
Asarum caudatum Lindl.
Asarum caudatum is a North American forest understory herb that spreads via rhizomes, has ginger-scented leaves, and holds potential medicinal uses.
Asarum europaeum L.
Asarum europaeum L.
Asarum europaeum L. is a shade-tolerative European groundcover plant with shiny pepper-scented leaves and dark-centered purple flowers.
Asarum hartwegii S.Watson
Asarum hartwegii S.Watson
Asarum hartwegii, or Hartweg's wild ginger, is a perennial herb endemic to California's forest habitats.
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.
Asclepias curtissii A.Gray
Asclepias curtissii A.Gray
Asclepias curtissii, or Curtiss's milkweed, is a toxic Florida deciduous milkweed with bright white summer flowers, tolerant of soil disturbance.
Asclepias eriocarpa Benth.
Asclepias eriocarpa Benth.
Asclepias eriocarpa is a toxic perennial milkweed native to western North America that supports monarch butterflies.
Asclepias erosa Torr.
Asclepias erosa Torr.
Asclepias erosa is a perennial milkweed herb, historically used for chewing gum and tested for natural rubber in 1935.
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