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Comprehensive Description ( anglais )

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Osmorhiza brachypoda Torr. ; Durand, Jour. Acad Phila. II. 3: 89. 1855.
Myrrhis brachypoda Greene, Fl. Fran. 332. 1892. Washinglonia brachypoda A. Heller, Cat. N. Am. PI. 5. 1898. Osmorhiza brachypoda var. jralerna Jepson, Fl. Calif. 2: 670. 1936.
Plants rather stout, 3-8 dm. high, more or less short-pilose throughout; leaves ovate or deltoid in general outline, excluding the petioles S-25 cm. long, 10-18 cm. broad, ternate-pinnate, the leaflets ovate, 2-6 cm. long, 1-4 cm. broad, acute or obtuse, coarsely serrate, incised and pinnately lobed toward the base, pilose or strigose especially beneath; petioles 5-20 cm. long; peduncles 9-20 cm. long; involucre wanting, or occasionally of a foliaceous bract; involucel of several linear or lanceolate, acute, ciliate bractlets, 2-10 mm. long, spreading or reflexed, exceeding the pedicels; rays 2-5, spreading-ascending, 2.5-10 cm. long; pedicels ascending, 1-3 mm. long; flowers greenish-yellow, the styles about 0.5 mm. long; carpophore divided about onethird of its length; fruit oblong-fusiform, 12-20 mm. long, tapering into a narrow beak at the apex, caudate at the base, short-hispid on the conspicuous ribs.
Type locality: "Near the banks of Deer Creek," Nevada City, Nevada County, California, Henry Pralten.
Distribution: Central to southern California, and Arizona (A brains 3S3S, Parish 4165).
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citation bibliographique
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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North American Flora

Osmorhiza brachypoda ( anglais )

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Osmorhiza brachypoda is a species of flowering plant in the family Apiaceae known by the common name California sweetcicely.

Description

Osmorhiza brachypoda is a hairy, aromatic perennial herb growing 30–80 centimetres (12–31 in) tall.

The green leaves have blades up to 20 centimeters long which are divided into toothed or lobed leaflets. The blade is borne on a long petiole.

The inflorescence is a compound umbel of many tiny greenish yellow flowers at the tip of a stemlike peduncle. The narrow, elongated fruit is ribbed and bristly, measuring up to 2 centimeters long.

Distribution and habitat

It is native to mountainous and wooded areas of California and Arizona, at elevations from 200–2,000 meters (660–6,560 ft). Habitats include chaparral and woodlands and coniferous forests.[1]

It is found in the Southern California Coast Ranges, Transverse Ranges, Peninsular Ranges, and the central and southern Sierra Nevada foothills.

Ecology

This is the only known host plant for the California endemic moth Greya suffusca.[2]

References

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Osmorhiza brachypoda: Brief Summary ( anglais )

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Osmorhiza brachypoda is a species of flowering plant in the family Apiaceae known by the common name California sweetcicely.

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