Lomatium observatorium

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Lomatium observatorium
Lomatium observatorium (Mount Hamilton desertparsley) (32404215346).jpg
Status TNC G1.svg
Critically Imperiled  (NatureServe)
Scientific classification Red Pencil Icon.png
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.

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<i>Lomatium martindalei</i> Species of flowering plant

Lomatium martindalei is a species of flowering plant in the carrot family known by the common names Cascade desertparsley and coast range lomatium. It is native to the west coast of North America, from Vancouver Island south to the Klamath Mountains of far northern California. It can be found in a number of coastal and inland habitats, from coastal plains to high mountain talus and meadows. This is a perennial herb growing 15 to 40 centimeters tall from a carrot-like taproot. There is often no stem, the erect or spreading leaves and inflorescence emerging from ground level. The thinly fleshy leaves may approach 20 centimeters long, their blades divided into leaflets made up of many small oval segments. The inflorescence bears an umbel of small yellowish flowers.

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<i>Lomatium parvifolium</i> Species of flowering plant

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<i>Lomatium piperi</i> Species of carrot

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Lomatium repostum is an uncommon species of flowering plant in the carrot family known by the common name Napa biscuitroot, or Napa lomatium. It is endemic to California, where it is known only from the northrthern California Coast Ranges surrounding the northern San Francisco Bay Area. It often grows in plant communities on serpentine soils.

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<i>Lomatium tracyi</i> Species of flowering plant

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Packera bernardina is a rare species of flowering plant in the aster family known by the common name San Bernardino ragwort.

Packera ganderi is a rare species of flowering plant in the aster family known by the common name Gander's ragwort. It is endemic to southern California, where it is known from a few occurrences in San Diego and Riverside Counties.

<i>Packera layneae</i> Species of flowering plant

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References

  1. "Lomatium observatorium". Natural Resources Conservation Service PLANTS Database. USDA . Retrieved 23 June 2015.
  2. 1 2 The Nature Conservatory
  3. Constance, L. and B. Ertter. (1996). Post-manual adjustments in Californian Lomatium (Apiaceae). Madroño 43:4 515-521.