Calochortus umbellatus is a flowering plant in the lily family found only in California in the United States.[3][4] The common name for this species is Oakland mariposa lily or Oakland star-tulip.
| Calochortus umbellatus | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Liliales |
| Family: | Liliaceae |
| Genus: | Calochortus |
| Species: | C. umbellatus
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| Binomial name | |
| Calochortus umbellatus Alph.Wood 1868 not A. Nelson 1912
| |
| Synonyms[2] | |
|
Calochortus collinus Lemmon | |
Distribution
editThe species is a California endemic of limited distribution.[5] It grows primarily in the San Francisco Bay Region, often on serpentine soils,[6] with a few isolated populations in Humboldt, Mendocino, and Nevada Counties.[7]
Description
editCalochortus umbellatus is a branching perennial herb up to 25 cm tall. Inflorescence is sub-umbellate with 3-10 white or pale pink flowers.[8]
This species is included on the California Native Plant Society list 4.2 of rare and endangered plants.[9]
References
edit- ^ "NatureServe Explorer - Calochortus umbellatus". NatureServe Explorer Calochortus umbellatus. NatureServe. 2022-05-30. Retrieved 30 May 2022.
- ^ Kew World Checklist of Selected Plant Families
- ^ Wood, Alphonso 1868. Proceedings of the Academy of Natural Sciences of Philadelphia 20(6): 168
- ^ Tropicos, Calochortus umbellatus Alph. Wood
- ^ Jepson Manual (1993) published by the University of California, Berkeley
- ^ "The Jepson Herbarium".
- ^ Calflora taxon report, University of California @ Berkeley, Calochortus umbellatus Wood Oakland mariposa lily, Oakland star tulip
- ^ Flora of North America, Vol. 26 Page 127 Oakland star-tulip Calochortus umbellatus Alph. Wood
- ^ Calflora (2008) Calochortus umbellatus
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