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Napa Biscuitroot

Lomatium repostum (Jepson) Mathias

Comprehensive Description

provided by North American Flora
Lomatium repostum (Jepson) Mathias, Ann. Mo. Bot. Gard 25:237. 1937.
Lomatium lucidum var. repostum Jepson, Madrono 1: 149. 1924.
Plants acaulescent, 1.5-3.6 dm. high, from a long, slender, sometimes branching taproot, glabrous; leaves broadly ovate in general outline, excluding the petioles 5-15 cm. long, 1-2ternate or ternate-pinnate, the ultimate divisions ovate to subflabellate, 1-4 cm. long, 1-6 cm. broad, regularly and sharply dentate, rarely shallowly lobed; petioles 3-17 cm. long, shortly sheathing below; peduncles exceeding the leaves; involucel of lanceolate, subacuminate, dimidiate bractlets, usually connate below, about equaling the flowers; rays 8-20, spreading, 3-8 cm. long; pedicels 8-12 mm. long, the umbellets about 20-flowered; flowers greenish-yellow; fruit broadly oval, 10-15 mm. long, 7-12 mm. broad, emarginate at base and apex, the wings thin, about equaling to much broader than the body; oil-tubes 1-3 in the intervals, 4-6 on the commissure.
Type locality: "Near Collin's Spring, Vaea Mountains," California, Jepson. Distribution: Inner Coast Ranges, northern Napa and southern Lake counties, California
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bibliographic citation
Albert Charles Smith, Mildred Esther Mathias, Lincoln Constance, Harold William Rickett. 1944-1945. UMBELLALES and CORNALES. North American flora. vol 28B. New York Botanical Garden, New York, NY
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Lomatium repostum

provided by wikipedia EN

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.

Description

Lomatium repostum is a spreading perennial herb growing up to half a meter long from a slender taproot. There is generally no stem, the leaves and inflorescence emerging at ground level. The leaf blades are made up of sharp-toothed oval leaflets each up to 6 centimeters long. The inflorescence is an umbel of yellowish-green to purplish flowers.

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Lomatium repostum: Brief Summary

provided by wikipedia EN

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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