Lomatium observatorium is a rare species of flowering plant in the carrot family known by the common names Mt. Hamilton desertparsley[1] and Mount Hamilton lomatium. It is endemic to California, where it is known only from the mountains of Santa Clara County, including Mount Hamilton near the Lick Observatory.[2] It may also occur in Stanislaus County.[2] Its habitat includes mountain woodlands on volcanic and metamorphosed sedimentary rock substrates. Described The plant to science as a new species in 1996, the plant is a perennial herb growing low to the ground, the lightly hairy herbage growing from a long taproot.[3]
| Lomatium observatorium | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Apiales |
| Family: | Apiaceae |
| Genus: | Lomatium |
| Species: | L. observatorium
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| Binomial name | |
| Lomatium observatorium | |
The leaf blades are up to 12 centimeters long and are intricately divided into many subdivided lobes, the smallest segments linear or lance-shaped and pointed. The blades are borne on petioles a few centimeters in length. The inflorescence is an umbel of one or more clusters of tiny flowers borne on a peduncle, which is very short or elongated, up to 20 centimeters tall.
References
edit- ^ NRCS. "Lomatium observatorium". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 23 June 2015.
- ^ a b The Nature Conservatory
- ^ Constance, L. and B. Ertter. (1996). Post-manual adjustments in Californian Lomatium (Apiaceae). Madroño 43:4 515-521.
External links
edit- Jepson Manual Treatment
- California Native Plant Society Rare Plant Profile
- USDA Plants Profile
- U.C. Photos gallery
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