Search results
Results from the WOW.Com Content Network
Ancient silver coin from Cyrene depicting a stalk of silphium. Silphium (also known as laserwort or laser; Ancient Greek: σίλφιον, sílphion) is an unidentified plant that was used in classical antiquity as a seasoning, perfume, aphrodisiac, and medicine.
Silphium terebinthinaceum can survive destructive events such as grazing and soil degradation because of its ability to produce new above-ground shoots. [7] This plant is also well adapted to obtain and hold onto water due to its characteristically large taproot and large, particularly oriented leaves. [ 7 ]
Silphium laciniatum is a species of flowering plant in the family Asteraceae known commonly as compassplant [2] or compass plant. It is native to North America, where it occurs in Ontario in Canada and the eastern and central United States as far west as New Mexico . [ 3 ]
Silphium is a genus of North American plants in the tribe Heliantheae within the family Asteraceae. [ 1 ] [ 2 ] Members of the genus, commonly known as rosinweeds , are herbaceous perennial plants growing to 0.2 m (8 in) to more than 2.5 m (8 ft 2 in) tall, with yellow (rarely white) flowerheads that resemble sunflowers .
Silphium integrifolium is a species of flowering plant in the family Asteraceae. Its common names include rosinweed, whole-leaf rosinweed, entire-leaf rosinweed, prairie rosinweed, [1] and silflower. [2] It is native to eastern North America, including Ontario in Canada and the eastern and central United States as far west as New Mexico. [3] [4]
Silphium perfoliatum, the cup plant [2] or cup-plant, is a species of flowering plant in the family Asteraceae, native to eastern and central North America. It is an erect herbaceous perennial with triangular toothed leaves, and daisy-like yellow composite flower heads in summer.
Silphium gracile is placed by some authors as a variety of Silphium radula, while other authors treat them as distinct species. [3] [4] Silphium radula can be distinguished from S. gracile by its shorter peduncles, resulting in its stem leaves often subtending the flower heads (as opposed to flowers being on long naked peduncles as in S. gracile).
Silphium wasiotense is an erect herbaceous perennial. It has large, toothed, persistent basal leaves, and similar cauline leaves which are reduced in size up the stem. Silphium wasiotense can be distinguished from the similar looking Silphium brachiatum and Silphium mohrii by its combination of cordate to subcordate leaf bases and hispid stem. [5]