Threebract Onion Plant Information


Threebract Onion grows in the following 8 states:

Colorado, Idaho, Montana, Utah, Wyoming, Oregon, California, Nevada


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More information about Threebract Onion may be found here, or from the US Department of Agriculture.

Allium tribracteatum, known by the common name Threebract onion, is a species of wild onion found in California.

The plant is endemic to California, where it is known only from the slopes of the Sierra Nevada in Tuolumne and Calaveras Counties.
Allium tribracteatum 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. Tepals are white to pink with red or purple midveins; anthers purple; pollen gray.


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