Rosa bridgesii
Rosa bridgesii is a species of rose known by the common names pygmy rose[1] and Sierran dwarf rose. It is native to California, where it grows in the forests of the Sierra Nevada and surrounding mountains and foothills. It may also occur in Oregon.
| Rosa bridgesii | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Rosa |
| Species: | R. bridgesii |
| Binomial name | |
| Rosa bridgesii | |
This rose is sometimes treated as a variety of Rosa gymnocarpa.
Description
Rosa bridgesii is a small rhizomatous shrub growing 10 to 80 centimeters tall. The brown stem is covered in paired prickles. The leaves are each made up of a few hairy, glandular leaflets which are oval in shape and toothed. The leaflet at the end of the leaf is up to 3 centimeters long and has a flat tip.
The inflorescence is a solitary flower or cyme of up to 5 flowers. The flower has five glandular sepals and five pink petals each up to 1.5 centimeters long. At the center are many stamens and up to 20 pistils. The fruit is a rose hip up to a centimeter wide.
References
- USDA, NRCS (n.d.). "Rosa bridgesii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 October 2015.