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Siskiyou Onion
Allium siskiyouense
About Siskiyou Onion (Allium siskiyouense) 0 Nurseries Carry This Plant Allium siskiyouense is a species of wild onion known by the common name Siskiyou onion. It is native to the Klamath Mountains and nearby ranges of northern California and southern Oregon, where it grows in serpentine and other rocky soil types. This small onion plant grows from a reddish brown bulb one or two centimeters long. It produces a short stem no more than 8 centimeters long and two sickle-shaped leaves which are usually longer. The flower cluster contains up to about 35 flowers, each with dark-veined pink petals around a centimeter long and sometimes toothed at the tips.
Plant Description
Plant Type
Plant Type
Perennial herb

Flower Color
Flower Color
Red, Pink

Wildlife Supported


Landscaping Information
Part Shade

Common uses
Common uses
Bee Gardens

For propagating by seed: No treatment.

Sunset Zones
Sunset Zones?
1, 2, 3, 7, 14, 15, 16

Natural Setting
Site Type
Site Type
Rocky slopes

Annual Precipitation: 12.3" - 158.4", Summer Precipitation: 0.57" - 6.12", Coldest Month: 29.4" - 51.3", Hottest Month: 47.2" - 74.8", Humidity: 1.06" - 24.20", Elevation: 1053" - 9002"

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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