Back عضبة Arabic سيلفيوم ARZ Silphium Azerbaijani Silphium (gènere) Catalan Silphium CEB Silphien German Σίλφιον (γένος) Greek Silphium Spanish سیلیفیوم (سرده) Persian Kompassikukat Finnish
| Silphium | |
|---|---|
&sq=Sri Lanka&lang=en&file=File:Silphium_integrifolium_compressed.JPG)
| |
| Silphium integrifolium | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Heliantheae |
| Subtribe: | Engelmanniinae |
| Genus: | Silphium L. |
| Type species | |
| Silphium asteriscus | |
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. In the rosinweeds, the ray florets in the head are female and the disc florets are male;[3] this differs from sunflowers, where ray florets are sterile and disc florets are perfect, capable of producing both pollen and seeds.[4]
The name of the genus comes from the Ancient Greek word for a North African plant whose identity has been lost, though it is known its gum or juice was prized by the ancients as a medicine and a condiment.[3]
- ^ Linnaeus, Carl (1753). Species Plantarum (in Latin). Vol. 2. pp. 919–920.
- ^ "Silphium L.". Tropicos. Missouri Botanical Garden.
- ^ a b Clevinger, Jennifer A. "Silphium". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press. Retrieved 2008-06-24 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- ^ Schilling, Edward E. (2006). "Helianthus". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.