An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 4- Petalostemum multiflorum Nutt. Round- headed Prairie-clover. Fig. 2515. P. multiftorus Xutt. Journ. Phil. .Acad. 7 : g2. 1834. Kuhnistera multiftora Heller, Mem. Torr. Club 5: 197. 1894. Glabrous, erect, corymbosely much branched, i°-2° high. Leaves short-petioled, often clustered; leaflets 3-9, linear or somewha
An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 4- Petalostemum multiflorum Nutt. Round- headed Prairie-clover. Fig. 2515. P. multiftorus Xutt. Journ. Phil. .Acad. 7 : g2. 1834. Kuhnistera multiftora Heller, Mem. Torr. Club 5: 197. 1894. Glabrous, erect, corymbosely much branched, i°-2° high. Leaves short-petioled, often clustered; leaflets 3-9, linear or somewhat oblanceolate, obtuse or ob- tusish at the apex, cuneate or narrowed at the base, short-stalked, 4'-6' long, i'-i' wide; peduncles elongated; heads globose, 4'-6' in diameter; bracts subulate, shorter than the calyx; slightly pubescent: corolla white, about 2' long; wings and keel-petals ovate, oval, or slightly cordate. Missouri, Kansas, Arkansas 5. Petalostemum purpiireum (\'ent.) Rydb. \'iolet or Purple Prairie-clover. Fig. 2516. Dalea purpurea Vent. Hort. Cels, pi. 40. 1800. Petalostemon violaceum Michx. Fl. Bor. Am. 2 : 50. 1803. Daleayiolacea Willd. Sp. PI. 3: 1337. 1803. Kiihnislera purpurea MacM. Met. Minn. 329. 1892. P. purpureum Rydb. Mem. X. Y. Bot. Card, i: 238. 1900. Glabrous or slightly pubescent, erect, iJ°-^3° high, branching above. Leaves short-petioled, more or less clustered; leaflets 3-5, narrowly linear, i'-g' long, i'-l' wide, acutish and often mucronate at the apex, narrowed at the base, very short-stalked; spikes pe- duncled, oblong, or finally cylindric, ¥-2 long, about 5' thick; bracts obovate, mucronate, nearly glabrous, equalling the silky-pubescent calyx or shorter; corolla violet or purple, about 2' long; standard cordate; wings and keel-petals oblong. Prairies and plains, Indiana to Manitoba. Saskatche- wan. Texas and Colorado. Often grows with P. can- didum. July-Aug. Thimbleweed. Red tassel-flower.
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