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Wild Onion
Allium denticulatum

About Wild Onion (Allium denticulatum) Allium denticulatum is a species of wild onion known by the common name toothed wild onion. It is endemic to California, where it grows in the western Mojave Desert and adjacent Tehachapi Mountains and the southern Sierra Nevada. This onion grows from a reddish brown spherical to oval-shaped bulb just over a centimeter long. It produces a stem up to 18 centimeters tall and a single cylindrical leaf up to twice as long as the stem. The flower cluster contains up to 30 flowers with deep pink to purplish petals which are toothed at their tips.
Plant Description
Plant Type
Perennial herb

Max. Height
7.1 in (18 cm)

Flower Color
Pink, Purple

Native Status

Natural Setting
Site Type
Dry slopes


Elevation ?
2445' - 8861'

Annual Precip. ?
5.4" - 22.7"

Summer Precip. ?
0.36" - 1.78"

Coldest Month ?
36.4° F - 52.1° F

Hottest Month ?
55.2° F - 80.2° F

Humidity ?
3.09 vpd - 32.22 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Toothed Onion, Toothed Wild Onion

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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