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Image of Broad-sheath Desert-parsley
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Broad Sheath Desert Parsley

Lomatium vaginatum Coult. & Rose

Comprehensive Description

provided by North American Flora
Lomatium vaginatum Coult. & Rose, Contr. U. S. Nat. Herb 7:223. 1900.
Cogswellia vaginata M. E. Jones, Contr. W. Bot. 12: 34. 1908.
Lomatium Plummerae var. Helleri Mathias, Ann. Mo. Bot. Gard. 25: 258. 1937.
Plants caulescent, 2.3-4.5 dm. high, from an elongate thickened root, scabrous; leaves ovate in general outline, excluding the petioles 5-13 cm. long, ternate, then 1-2-pinnate, the ultimate divisions crowded, oblong, 1-5 mm. long, about 1 mm. broad, apiculate; petioles 1.5-10 cm. long, those of the cauline leaves wholly sheathing; peduncles exceeding the leaves; involucel of conspicuous, oblanceolate to obovate, acute bractlets; rays 6-15, ascending, 1-8 cm. long, unequal; pedicels 3-12 mm. long, the umbellets many-flowered; flowers yellow; fruit broadly oval to obovate, 8-12 mm. long, 5-8 mm. broad, granulate-roughened, the wings nearly as broad as the body; oil-tubes 1-4 in the intervals, 4 or 5 on the commissure.
Type locality: Logan Valley, Union County, Oregon, Cusick 1655.
Distribution: Central Oregon to northeastern California (Cusick 2563, Leiberg 2293).
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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 vaginatum

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Lomatium vaginatum is a species of flowering plant in the carrot family known by the common name broadsheath desertparsley. It is native to northern California and adjacent sections of Oregon and Nevada on the Modoc Plateau. It grows in sagebrush, woodland, and other local habitat. This is a perennial herb growing up to 45 centimeters long from a thick taproot. The leaf blades are divided and subdivided into narrow segments. Leaves higher on the stem are enclosed in sheaths. The inflorescence is an umbel of yellow flowers.

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