Allium jepsonii

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Amaryllidaceae
Subfamilia: Allioideae
Tribus: Allieae
Genus: Allium
Species: Allium jepsonii
Name

Allium jepsonii (Ownbey & Aase) S.S.Denison & McNeal, 1989
Synonyms

Allium sanbornii var. jepsonii Ownbey & Aase ex Traub

Distribution
Native distribution areas:

Continental: Northern America
Regional: Southwestern USA
California

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Denison, S.S. & McNeal, D.W., Madroño 36: 127 1989.
USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 (http://plants.usda.gov). Data compiled from various sources by Mark W. Skinner. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Govaerts, R. et al. 2017. Allium jepsonii in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2017 Sep 05. Reference page.

Vernacular names
English: Jepson's onion

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

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

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

List of plants of the Sierra Nevada (U.S.)
Endemic flora of California

References

"NatureServe Explorer 2.0".
Denison, S. S. & McNeal, Dale W. 1989. Madroño 36(2): 127.
Traub, Hamilton Paul. 1972. Plant Life 28: 63.
Munz, P. A. & D. D. Keck. 1959. California Flora 1–1681. University of California Press, Berkeley.
USDA Plants Profile
Flora of North America
Allium jepsonii — U.C. Photo gallery