- Common Names
- Native Status
- Umpqua Mariposa Lily
- Rarity:Locally Common
Umpqua Mariposa Lily was first described in 1989 as a species seperate from Calochortus howelli. Calochortus umpquaensis grows exclusively on serpentine barrens in the Umpqua Valley as well as a few locations in the Rogue Valley.
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