Explore 23,508 Species
Bowltube Iris
Iris macrosiphon Torr.
Bowltube iris is an endemic California iris species used by Native Americans for…
western blue flag
Iris missouriensis Nutt.
Iris missouriensis is a toxic rhizomatous perennial iris with various recorded N…
Sweet Iris
Iris pallida Lam.
Iris pallida Lam. is a Mediterranean iris cultivated for orris root used in food…
Iris planifolia (Mill.) T.Durand & Schinz
Iris planifolia (Mill.) T.Durand & Schinz
Iris planifolia is a small bulbous Mediterranean iris with large blue flowers, c…
Yellow Iris
Iris pseudacorus L.
Iris pseudacorus L. is a yellow-flowered wetland perennial with multiple ornamen…
Dwarf Iris
Iris pumila L.
Iris pumila, or pygmy/dwarf iris, is a small iris species, a natural hybrid that…
Pilgrim Iris
Iris ruthenica Ker Gawl.
Iris ruthenica is a variable Eurasian iris species that is cultivated in rock ga…
Japanese Iris
Iris sanguinea Hornem.
Iris sanguinea is an eastern Asian iris species that is toxic to humans and cult…
Prairie Iris
Iris savannarum Small
Iris savannarum is a poisonous rhizomatous iris native to the southeastern US th…
Beach-head Iris
Iris setosa Pall. ex Link
Iris setosa is a circumpolar iris species native to Asia and North America, with…
Siberian Iris
Iris sibirica L.
Iris sibirica L. is a branched-stemmed blue iris native to Eurasia, naturalized …
Blue Iris
Iris spuria L.
Iris spuria L. is a wide-ranging iris species with scented blue-purple flowers, …
Oregon iris
Iris tenax Douglas ex Lindl.
Iris tenax is a clumping iris with showy spring flowers, native to the Pacific N…
longtube iris
Iris tenuissima Dykes
Iris tenuissima Dykes is a rhizomatous perennial herb with two streaked flowers …
Snake's-head Iris
Iris tuberosa L.
Iris tuberosa is a tuberous ornamental iris native to the Mediterranean and west…
Algerian Iris
Iris unguicularis Poir.
Iris unguicularis, the Algerian iris, is a rhizomatous winter-flowering iris wid…
Dwarf Iris
Iris verna L.
Iris verna L. is a small fragrant spring-blooming beardless rhizomatous iris tha…
northern blue flag
Iris versicolor L.
Iris versicolor L. is a blue-flowered poisonous herbaceous perennial with tradit…
southern blue flag
Iris virginica L.
Iris virginica is a North American native perennial iris, with traditional medic…
Spanish Iris
Iris xiphium L.
Iris xiphium, the Spanish iris, is a bulbous flowering iris native to southwest …
Swamp Millet
Isachne globosa (Thunb.) Kuntze
Isachne globosa is an aquatic/semi-aquatic wetland perennial grass native across…
woad
Isatis tinctoria L.
Isatis tinctoria (woad) is a Brassicaceae flowering plant with a long history of…
alkali goldenbush
Isocoma acradenia (Greene) Greene
Isocoma acradenia is a bushy subshrub with three varieties found across western …
Coastal Goldenbush
Isocoma menziesii (Hook. & Arn.) G.L.Nesom
Isocoma menziesii is a matted subshrub with clustered yellow flower heads, nativ…
