Biology:Panicum capillare
| Panicum capillare | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Panicoideae |
| Genus: | Panicum |
| Species: | P. capillare
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| Binomial name | |
| Panicum capillare | |
| Synonyms | |
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Panicum barbipulvinatum | |
Panicum capillare, known by the common name witchgrass,[1] is a species of grass. It is a native plant to most of North America from the East Coast through all of the West Coast and California. It can be found as an introduced species in Eurasia, and as a weed in gardens and landscaped areas.[2] It grows in many types of habitat.
Description
Panicum capillare is an annual bunchgrass growing decumbent or erect to heights exceeding one meter (3 feet). It is green to blue- or purple-tinged in color. In texture it is quite hairy, especially on the leaves and at the nodes. The ligule is a fringe of long hairs.
The inflorescence is a large open panicle which may be over half the total length of the plant, up to half a meter long. At maturity it fans out, spreading to a width over 20 centimeters. As the plant dies and dries, the panicle may break off whole and becomes a tumbleweed.[3]
Panicum capillare has been proposed as a solution to herbicide-contaminated soil, showing an uptake of atrazine in testing,[4] and growing readily in the same soils as agricultural crops.[5]
References
- ↑ "Panicum capillare". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=PACA6. Retrieved 30 January 2016.
- ↑ Virginia Tech Weed Profile
- ↑ Grass Manual Treatment
- ↑ Murphy, Ian J; Coats, Joel R (2011-03-01). "The capacity of switchgrass ( Panicum virgatum ) to degrade atrazine in a phytoremediation setting" (in en). Environmental Toxicology and Chemistry 30 (3): 715–722. doi:10.1002/etc.437. ISSN 0730-7268. PMID 21154841. Bibcode: 2011EnvTC..30..715M. https://academic.oup.com/etc/article/30/3/715/7762740.
- ↑ Clements, David R.; Stephen J. Darbyshire, Antonio DiTommaso; Cavers, Paul B.; Sartonov, Alison D. (January 2004). "The biology of Canadian weeds. 127. Panicum capillare L.". Canadian Journal of Plant Science (NRC Research Press) 84 (1): 327–341. doi:10.4141/P02-147. ISSN 0008-4220. https://cdnsciencepub.com/doi/abs/10.4141/P02-147.
External links
- USDA Plants Profile for Panicum capillare (witchgrass)
- Jepson Manual Treatment
- UC CalPhotos gallery of Panicum capillare
Wikidata ☰ Q164122 entry
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