Allium tribracteatum, known by the common name Threebract onion,[3] is a species of wild onion[4] 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
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Binomial name | |
Allium tribracteatum | |
Synonyms[2] | |
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The plant is endemic to California, where it is known only from the slopes of the Sierra Nevada in Tuolumne and Calaveras Counties.[4][5][6]
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.[4][7][5] Flowers bloom March to May.[5]