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Allium cratericola is a species of wild onion known by the common name Cascade onion. It is endemic to California, where is an uncommon member of the flora in several of the state's mountain ranges, including the northern California Coast Ranges, the western Transverse Ranges, Klamath Mountains, and the Sierra Nevada foothills.
This onion, Allium cratericola, grows a short stem up to 10 centimetres (3.9 in) tall from a brown-coated oval-shaped bulb. There are one or two long, pointed leaves up to four times the length of the stem.
The inflorescence contains up to 20 rosy pink flowers clustered densely together.
|Wikimedia Commons has media related to: Allium cratericola|
- Jepson Manual Treatment: Allium cratericola
- USDA Plants Profile: Allium cratericola (Cascade onion)
- Flora of North America
- Allium cratericola — U.C. Photo gallery
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