Rubus pascuus
| Rubus pascuus | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Rubus |
| Species: | R. pascuus
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| Binomial name | |
| Rubus pascuus | |
| Synonyms[1] | |
| |
Rubus pascuus is an uncommon North American species of brambles in the rose family. It grows only in the United States, primarily in the Ozarks of Missouri and Arkansas but with scattered populations farther east in New Jersey, Maryland, Virginia, and the Carolinas.[2][3]
The genetics of Rubus is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.[4]
Description
Coarse, woody canes, often 2-5 m long and heavily armed with strong, recurved prickles. Recurved prickles also arm the underside of the leaves and flowering/fruiting around a stem (raceme). The underside of the leaves are very light/bright grayish with little hairs (tomentose). The whitish underside of the leaves sets it apart from similar species with recurved prickles such as Rubus argutus.
References
- ^ The Plant List, Rubus pascuus L.H.Bailey
- ^ Biota of North America Program 2014 county distribution map
- ^ Bailey, Liberty Hyde 1943. Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(6): 440–442, figure 200
- ^ Flora of North America, Rubus Linnaeus, 1754. Bramble
External links
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