Silphium asteriscus
| Silphium asteriscus | |
|---|---|
| |
| Photo taken by Gil Nelson | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta – Flowering plants |
| Class: | Magnoliopsida – Dicotyledons |
| Order: | Asterales |
| Family: | Asteraceae ⁄ Compositae |
| Genus: | Silphium |
| Species: | S. asteriscus |
| Binomial name | |
| Silphium asteriscus L. | |
| |
| Natural range of Silphium asteriscus from USDA NRCS Plants Database. | |
Contents
Description
Common name: starry rosinweed
Distribution
Ecology
wooded-open ecotones of Cross Timbers that include oaks, ashes, elms, hickories (Gee et al 1994). Seen within their study plots of Midland Plateau Central Highlands where the surface soil texture is sandy clay loam with a clay subsoil; Hilly Coastal Plain and the Upper Loam Hills where the surface soils are loamy sands and the subsoils are sandy clay loams (Miller, Boyd, Edwards 1999).
Habitat
Phenology
“Hairy-stalked Silphium. This species has a perennial root; the stem four or five feet high, thick, solid, set with prickly hairs, and having many purple spots; the lower leaves alternate-upper opposite and sessile, rough, about two inches long, and an inch broad near the base, having a few slight indentures on their edges; the upper part of the stem divides into five or six small branches, terminated by yellow radiated flowers like those of the perennial Sun-flower, but smaller, having generally nine florets in the ray. Native of North America, flowering from July to September.” – Strong et al 1848 page 171
Seed dispersal
Seed bank and germination
Fire ecology
It resprouts and flowers within two months of burning in the spring (Robertson observation).
Pollination
Use by animals
It is included in white-tailed deer diets in Cross Timbers ecosystem in Texas (Gee et al 1994).
Diseases and parasites
Conservation and Management
Cultivation and restoration
Photo Gallery
References and notes
- KMR
- Gee, K. L. (1994). White-tailed deer : their foods and management in the cross timbers. Ardmore, OK, Samuel Roberts Noble Foundation.
- Miller, J. H., R. S. Boyd, et al. (1999). "Floristic diversity, stand structure, and composition 11 years after herbicide site preparation." Canadian Journal of Forest Research 29: 1073-1083.
- Strong, A. B. (1848). The American flora, or history of plants and wildflowers: containing a systematic and general decription, natural history, chemical and medical properties of over six thousand plants, accompanied with a circumstantial detail of the medicinal effects, and of the diseases in which they have been most successfully employed. New York City, NY, Green & Spencer.
