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Lomatium observatorium

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Lomatium observatorium

Critically Imperiled  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Apiaceae
Genus: Lomatium
Species:
L. observatorium
Binomial name
Lomatium observatorium

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]

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]
  1. ^ USDA, NRCS (n.d.). "​Lomatium observatorium​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 June 2015.
  2. ^ a b The Nature Conservatory
  3. ^ Constance, L. and B. Ertter. (1996). Post-manual adjustments in Californian Lomatium (Apiaceae). Madroño 43:4 515-521.
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