Allium tribracteatum
Allium tribracteatum, known by the common name Threebract onion,[2] is a species of wild onion [3] found in California.
Threebract onion | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Amaryllidaceae |
Subfamily: | Allioideae |
Genus: | Allium |
Species: | A. tribracteatum |
Binomial name | |
Allium tribracteatum | |
Synonyms[1] | |
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Distribution
The plant is endemic to California, where it is known only from the slopes of the Sierra Nevada in Tuolumne and Calaveras Counties.[3][4][5]
Description
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.[3][6][4]
References
- Kew World Checklist of Selected Plant Families
- CalFlora taxon report 237, Allium tribracteatum Torrey (three bracted onion, threebract onion)
- Jepson Treament, University of California, Berkeley . accessed 3.20.2013
- Flora of North America v 26 p 269, Allium tribracteatum
- United States department of Agriculture Plants Profile, Allium tribracteatum
- Torrey, John. 1857. Reports of explorations and surveys : to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean, made under the direction of the Secretary of War 4(5): 148.
External links
- Allium tribracteatum in the CalPhotos Photo Database, University of California, Berkeley
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