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Allium hoffmanii

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About Beegum Onion (Allium hoffmanii) Allium hoffmanii is a species of wild onion known by the common name beegum onion. It is endemic to northern California, where it grows in the serpentine soils of the local mountain ranges. This onion grows a short stem up to about 10 centimeters tall from a brown or reddish bulb one or two centimeters long. There is generally a single leaf which may be longer than the stem. The flower cluster is packed with up to 40 flowers, each about a centimeter long and pink or purple in color with greenish veining. The protruding stamens are bumpy at their bases and have purple anthers at the tips.
Plant Description
Plant Type
Perennial herb

Max. Height
4 in (10.2 cm)

Flower Color
Lavender, Pink, Purple

Native Status
Natural Setting
Site Type
Rocky outcrops

Part Shade

Elevation ?
42' - 6811'

Annual Precip. ?
44.2" - 103.2"

Summer Precip. ?
1.02" - 3.51"

Coldest Month ?
35.7° F - 46.6° F

Hottest Month ?
51.9° F - 66.0° F

Humidity ?
0.20 vpd - 16.97 vpd

Sunset Zones ?
7, 16

Landscaping Information
Common uses
Bee Gardens

Nursery Availability
Never or Almost Never Available

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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