Comprehensive Description
provided by North American Flora
Ivesia unguiculata A. Gray, Proc. Am. Acad. 7 : 339. 1868
Poieniilla unguiculata Greene, Pittonia 1 : 105. 1887.
Potentilla ciliata Greene, Pittonia 1 : 103. 1887.
Horkelia unguiculata Rydb. Mem. Dep. Bot. Columbia Univ. 2 : 146. 1898.
Perennial, with a deep and thick root, crowned with a short, erect scaly caudex ; stems several, more or less brown, sparingly silkyvillous, simple, ascending or decumbent, 3-4 dm. high; stipules pectinately divided, rather large; basal leaves numerous, somewhat grayish but not densely silky with long hairs, pinnate, with numerous crowded pairs of leaflets, these 5-7.5 mm. long, divided to the base into linear-oblong or linear acute segments ; cyme dense, subcapitate ; hypanthium cupulate, slightly silky, 4 mm. in diameter ; bractlets lanceolate, slightly shorter than the broadly lanceolate sepals, which are 2-3 mm. long ; petals white, broadly spatulate or obovate, exceeding the sepals ; stamens 10-15 ; filaments filiform.
Type locality : Westfall's Meadow, Yosemite Valley, California. Distribution : Southern Sierra Nevada, California.
- 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
Ivesia unguiculata: Brief Summary
provided by wikipedia EN
Ivesia unguiculata is a species of flowering plant in the rose family known by the common name Yosemite mousetail.
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