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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 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 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 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 .
Thapsia gummifera (syn. Margotia gummifera) is a species of flowering plant in the family Apiaceae, native to the western Mediterranean; Portugal, Spain, Morocco, Algeria, and Tunisia. [1]
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Silphium compositum, the kidney-leaf rosinweed, is a flowering plant in the family Asteraceae. [1] A perennial in the Silphium genus, it has yellow flowers and is deciduous. [ 1 ] It grows in the southeastern United States.
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).