. 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 102d meridian. Botany; Botany. FABACEAE. Vol. II. 4. Petalostemum multiflorum Nutt. Round- headed Prairie-clover. Fig. 2515. P. multiflorus Nutt. Journ. Phil. Acad. 7 : 92. 1834. Kuhnistera multiflora 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
. 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 102d meridian. Botany; Botany. FABACEAE. Vol. II. 4. Petalostemum multiflorum Nutt. Round- headed Prairie-clover. Fig. 2515. P. multiflorus Nutt. Journ. Phil. Acad. 7 : 92. 1834. Kuhnistera multiflora 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; calyx-teeth slightly pubescent; corolla white, about 2" long; wings and keel-petals ovate, oval, or slightly cordate. Plains, western Iowa to Missouri, Kansas, Arkansas and Texas. Summer, 5. Petalostemum purpureum (Vent.) Rydb. Violet or Purple Prairie-clover. Fig. 2516. Dalea purpurea Vent. Hort. Cels, pi. 40. 1800. Petalostemon violacemn Michx. Fl. Bor. Am. 2 : 50. 1803. Dalea violacea Willd. Sp. PI. 3: 1337. 1803. Kuhnistera purpurea MacM. Met. Minn. 329. 1892. P. purpureum Rydb. Mem. N. Y. Bot. Gard. i : 238. 1900. Glabrous or slightly pubescent, erect, li'-s" high, branching above. Leaves short-petioled, more or less clustered; leaflets 3-5, narrowly linear, 3"-9" long, ¥'-i" 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-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
