Silphium pinnatifidum
| Silphium pinnatifidum | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Heliantheae |
| Genus: | Silphium |
| Species: | S. pinnatifidum |
| Binomial name | |
| Silphium pinnatifidum Elliott | |
Silphium pinnatifidum, the tansy rosinweed[2] or cutleaf prairie dock, is a species of flowering plant in the Composite family. It is native to the Southeastern United States where it is found in Alabama, Georgia, Kentucky, and Tennessee.[3] Its habitat is prairies and cedar glades, where it can be found in either wet or dry locations.
Although most populations are distinct, intermediate populations have been reported between Silphium pinnatifidum and Silphium terebinthinaceum, and some botanists consider S. pinnatifidum only a variety of S. terebinthinaceum. S. pinnatifidum was once thought to be a result of hybridization between Silphium terebinthinaceum and Silphium laciniatum, although molecular studies have indicated that S. pinnatifidum is too closely allied to S. terebinthinaceum for this to be the case.[4]
References
- ↑ "Silphium pinnatifidum". NatureServe. Retrieved 2014-05-04.
- ↑ "Silphium pinnatifidum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 November 2015.
- ↑ Flora of the Southern and Mid-Atlantic States
- ↑ Jessee, L.H. and G. Yatskievych. 2011. A new putative hybrid in Silphium (Asteraceae: Heliantheae). Phytoneuron 2011-62: 1–7.