California Native Plant Society
Tap map to see plants native to location
Add
Allium tribracteatum
Please enter either the common name or the botanical name of any native California plant species to see it's plant record

Loading....
Threebract Onion
  • Added Add to My Plant List
Allium tribracteatum
  

Zoom To My AddressZoom To California Estimated Plant Range




About Threebract Onion (Allium tribracteatum) Allium tribracteatum is a species of wild onion known by the common name threebract onion. It is endemic to California, where it is known only from the slopes of the Sierra Nevada in Tuolumne and Calaveras Counties. This is a small onion plant producing a stem only a few centimeters long from an oval-shaped bulb. There are two leaves which are usually much longer than the stem. The inflorescence contains up to 30 petite white to purple flowers, each less than a centimeter long.
Plant Description
Plant Type
Perennial herb

Flower Color
White, Purple

Native Status
Natural Setting
Site Type
Volcanic slopes

Sun
part Shade

Elevation ?
749' - 9326'

Annual Precip. ?
18.9" - 120.1"

Summer Precip. ?
0.41" - 4.11"

Coldest Month ?
27.4° F - 48.8° F

Hottest Month ?
49.5° F - 72.4° F

Humidity ?
1.13 vpd - 21.28 vpd

Landscaping Information
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

Sign in to your Calscape Account X




Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address
Password

Sign In


Copyright © 1999-2014 California Native Plant Society. All rights reserved.