| Grindelia scabra | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Grindelia |
| Species: | G. scabra |
| Binomial name | |
| Grindelia scabra Greene 1898 | |
Grindelia scabra, the rough gumweed, is a rare North American species of flowering plants in the family Asteraceae. It has been found in northern Mexico (Coahuila) and the southwestern United States (western Texas and southern New Mexico).
Grindelia scabra grows in dry rocky slopes and on top of mesas (flat-topped hills). It is an annual, biennial, or perennial herb up to 70 cm (28 in) tall. The plant usually produces numerous flower heads in open flat-topped arrays. Each head has 17-30 ray flowers, surrounding a large number of tiny disc flowers.
References
- NRCS. "Grindelia scabra". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 18 July 2015.
- Biota of North America Program 2014 county distribution map
- Nesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae. Phytologia 68(4): 303–332 distribution map on page 308
- Flora of North America, Grindelia scabra Greene, 1898.
External links
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