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Comprehensive Description

provided by North American Flora
Horkelia wilderae Parish, Bot. Gaz. 38 : 460. 1904
Cespitose, sparsely pubescent perennial, from a perpendicular root ; stem slender, 2 dm. high, much branched above ; stipules lanceolate, entire or 1-2-toothed at the base ; basal leaves 6-8 cm. long ; leaflets 5 or 6 pairs, cuneate, 5 mm. long, deeply incised, the lobes oblong ; upper cauline leaves unifoliolate, deeply dissected ; cyme diffuse ; flowers numerous on slender pedicels, 3-8 mm. long; hypanthium glabrate, saucer-shaped, about 2 mm. in diameter; bractlets linear-oblong, obtuse or acutish, 1 mm. long; sepals lanceolate, 2 mm. long ; petals obovate, white, about equaling the sepals ; achenes few.
Type locality : Along trail leading from Barton Flat to South Fork of Santa Ana River, San Bernadino Mountains, California.
Distribution : Known only from the type locality.
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bibliographic citation
Frederick Vernon Coville, Nathaniel Lord Britton, Henry Allan Gleason, John Kunkel Small, Charles Louis Pollard, Per Axel Rydberg. 1908. GROSSULARIACEAE, PLATANACEAE, CROSSOSOMATACEAE, CONNARACEAE, CALYCANTHACEAE, and ROSACEAE (pars). North American flora. vol 22(3). New York Botanical Garden, New York, NY
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Horkelia wilderae

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Horkelia wilderae is a rare species of flowering plant in the rose family known by the common name Barton Flats horkelia. It is endemic to San Bernardino County, California, where it is known from only about ten occurrences in the vicinity of Barton Flats. It grows in the montane chaparral and woodlands habitat where chaparral meets pine forest, and it is threatened by logging.[1]

Description

Horkelia wilderae is a perennial herb producing an inconspicuous rosette of prostrate leaves around a small caudex. Each leaf is up to 10 centimeters long and is made up of several pairs of wedge-shaped leaflets divided at the tips into several lobes. The inflorescence is an open array of up to 15 flowers atop an erect stalk, each flower made up of five pointed, green, often recurved sepals and five wedge-shaped to oblong white petals.

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Horkelia wilderae: Brief Summary

provided by wikipedia EN

Horkelia wilderae is a rare species of flowering plant in the rose family known by the common name Barton Flats horkelia. It is endemic to San Bernardino County, California, where it is known from only about ten occurrences in the vicinity of Barton Flats. It grows in the montane chaparral and woodlands habitat where chaparral meets pine forest, and it is threatened by logging.

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