. 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. 33. Aster prenanthoides Mtihl. Crooked-stem Aster. Fig. prenanthoides Muhl.; Willd. Sp. PI. 3 : 2046. 1804. Aster prenanthoides porrectifolius Porter, Mem. 5 : 326. 1894. Stem glabrous, or pubescent in lines above,flexuous, much branched, i°-2° high. Leavesthin, gblong to ovate-lanceolate, or lanceolate,sharply and coarsely serrate, sc
. 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. 33. Aster prenanthoides Mtihl. Crooked-stem Aster. Fig. prenanthoides Muhl.; Willd. Sp. PI. 3 : 2046. 1804. Aster prenanthoides porrectifolius Porter, Mem. 5 : 326. 1894. Stem glabrous, or pubescent in lines above,flexuous, much branched, i°-2° high. Leavesthin, gblong to ovate-lanceolate, or lanceolate,sharply and coarsely serrate, scabrous above, gla-brous or nearly so beneath, 3-8 long, 9-18wide, acuminate at the apex, abruptly narrowedbelow into a broad margined entire petiole, thebase auriculate-clasping; heads usually numerous,ibroad or more; involucre hemispheric, its bractslinear, acute, green, spreading, iml)ricated in 3 or4 series, the outer shorter; rays 20-30, violet,4-6 long; pappus tawny; achenes pubescent. In moist soil, Massachusetts to Minnesota, Vir-ginia, Kentucky and Iowa. Aster schistosus Steele, of West Virginia, is in-termediate in characters between this species and A. Lowrieanus Porter, and may be a 420 COMPOSITAE. Vol. III.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
