Explore 62,425 Species
flower-of-an-hour
Hibiscus trionum L.
Hibiscus trionum L. is a flowering plant capable of both outcrossing and self-po…
white hawkweed
Hieracium albiflorum Hook.
Hieracium albiflorum (white hawkweed) is a widespread white-flowered North Ameri…
Alpine hawkweed
Hieracium alpinum L.
Hieracium alpinum, alpine hawkweed, is a small herbaceous Eurasian flowering pla…
Beaked Hawkweed
Hieracium gronovii L.
Hieracium gronovii is a widespread North American herbaceous plant in the Astera…
Prickly Hawkweed
Hieracium horridum Fr.
Hieracium horridum Fr. is a small hairy flowering plant of the daisy family that…
common hawkweed
Hieracium lachenalii Suter
Hieracium lachenalii Suter is a common yellow-flowered weed native to most of Eu…
Tussock Hawkweed
Hieracium lepidulum Stenstr., 1889
Hieracium lepidulum (tussock hawkweed) is a potentially invasive triploid flower…
hairy hawkweed
Hieracium longipilum Torr. ex Hook.
Hieracium longipilum (hairy hawkweed) is a tall hairy North American herb in the…
Spotted Hawkweed
Hieracium maculatum Schrank
Hieracium maculatum, spotted hawkweed, is a flowering Hieracium species native t…
Coastal Plain Hawkweed
Hieracium megacephalum Nash
Hieracium megacephalum is a North American hawkweed species native only to the s…
Wall hawkweed
Hieracium murorum L.
Hieracium murorum, the wall hawkweed, is an Asteraceae flowering plant native to…
Panicled Hawkweed
Hieracium paniculatum L.
Hieracium paniculatum, the Allegheny hawkweed, is a yellow-flowered herb native …
New England Hawkweed
Hieracium sabaudum L.
Hieracium sabaudum is a European hawkweed species naturalized as a noxious weed …
rough hawkweed
Hieracium scabrum Michx.
Hieracium scabrum Michx. is a rough-haired herb native to eastern and central No…
western hawkweed
Hieracium scouleri Hook.
Hieracium scouleri Hook. is a mountain-dwelling flowering plant with bright yell…
Slender Hawkweed
Hieracium triste Willd. ex Spreng.
Hieracium triste, or slender hawkweed, is an unbranched perennial herb that grow…
Canada hawkweed
Hieracium umbellatum L.
Hieracium umbellatum L. is a yellow-flowered plant with hooked-toothed pointed l…
rattlesnakeweed
Hieracium venosum L.
Hieracium venosum, a hairy perennial hawkweed native to eastern North America, g…
Toxic hawkweed
Hieracium virosum Pall.
Hieracium virosum Pall. is a non-apomictic perennial flowering hawkweed native t…
James' Galleta
Hilaria jamesii (Torr.) Benth.
Hilaria jamesii, commonly called James' galleta, is an arid-tolerant grass nativ…
tobosagrass
Hilaria mutica (Buckley) Benth.
Hilaria mutica, or tobosa, is a common North American perennial grass, important…
Big Galleta
Hilaria rigida (Thurb.) Benth. ex Scribn.
Big galleta (Hilaria rigida) is a long-lived clumping perennial desert grass wit…
Adriatic Lizard Orchid
Himantoglossum adriaticum H.Baumann
The Adriatic lizard orchid (Himantoglossum adriaticum) is Europe's tallest orchi…
Goat’s Tongue Orchid
Himantoglossum caprinum (M.Bieb.) Spreng.
Himantoglossum caprinum is an orchid native to southeastern Europe and the Middl…
