Allium jepsonii
| Jepson's onion | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Amaryllidaceae |
| Subfamily: | Allioideae |
| Genus: | Allium |
| Species: | A. jepsonii
|
| Binomial name | |
| Allium jepsonii (Ownbey & Aase) S. Denison & McNeal
| |
| Synonyms | |
|
Allium sanbornii var. jepsonii Ownbey & Aase ex Traub | |
Allium jepsonii is a species of wild onion known by the common name Jepson's onion, honoring renowned California botanist Willis Linn Jepson.[2][3][4][5]
Distribution and habitat
[edit]Allium jepsonii is endemic to the foothills of the Sierra Nevada foothills of California, in Tuolumne, Placer, El Dorado, and Butte Counties. It is found at elevations of 300–600 metres (980–1,970 ft) and grows on clay soils.[6]
Description
[edit]Allium jepsonii, the Jepson's onion, grows to a height between about 20 and 40 centimeters from one or two oval-shaped bulbs. There is a single cylindrical leaf which is about the same length as the stem.
The inflorescence holds 20 to 60 small flowers, each under a centimeter long with pink-veined white tepals with curling tips.[4][6][7]
See also
[edit]References
[edit]- ^ "NatureServe Explorer 2.0".
- ^ Denison, S. S. & McNeal, Dale W. 1989. Madroño 36(2): 127.
- ^ Traub, Hamilton Paul. 1972. Plant Life 28: 63.
- ^ a b Munz, P. A. & D. D. Keck. 1959. California Flora 1–1681. University of California Press, Berkeley.
- ^ USDA Plants Profile
- ^ a b Flora of North America
- ^ Allium jepsonii — U.C. Photo gallery
External links
[edit]
- Jepson Manual Treatment — Allium jepsonii
- Calflora Database: Allium jepsonii (Jepson's onion)
- Allium jepsonii — UC Photos gallery
- NatureServe imperiled species
- Allium
- Endemic flora of California
- Flora of the Sierra Nevada (United States)
- Onions
- Natural history of the California chaparral and woodlands
- Natural history of Butte County, California
- Natural history of El Dorado County, California
- Natural history of Placer County, California
- Natural history of Tuolumne County, California
- Plants described in 1972
- Allium stubs