. 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. es opposite ; rays yellow. 2. P. occideiitalis. Involucre hemispheric, 7-12 broad; heads few, large. 3. P. helianthoides. I. Phaethusa virginica (L.) Britton. SmallWhite or \irginia Crownbeard. Fig. 4488. Verbesina virginica L. Sp. PI. 901. 1753. Perennial; stem densely puberulent, terete or winged,simple or branched, 3°-6° high. Leaves usually thin,alternate, ovate, roughish
. 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. es opposite ; rays yellow. 2. P. occideiitalis. Involucre hemispheric, 7-12 broad; heads few, large. 3. P. helianthoides. I. Phaethusa virginica (L.) Britton. SmallWhite or \irginia Crownbeard. Fig. 4488. Verbesina virginica L. Sp. PI. 901. 1753. Perennial; stem densely puberulent, terete or winged,simple or branched, 3°-6° high. Leaves usually thin,alternate, ovate, roughish above, puberulent, canes-cent or glabratc beneath, acute or acuminate at theapex, 4-io long, i-3 wide, contracted at the baseinto winged petioles, the uppermost sessile, lanceo-late, smaller, often entire; heads corymbose-panicu-late at the ends of the stem and branches, numerous,6-io broad; involucre oblong-campanulate. 2-2,broad, its bracts narrowly lanceolate, erect, obtuse,pubescent; rays 3-5, obovate, white, pistillate ; achenesminutely pubescent, winged or wingless; pappus of2 slender awns, or sometimes none. In dry soil, Pennsylvania to Virginia, Illinois, Mis-souri, Kansas, Florida and Texas. 488 COMPOSITAE. Vol. III. 2. Phaethusa occidentalis (L.) Britton. Small Yellow Crownbeard. Fig. 4489. Siegesbeckia occidentalis L. Sp. PI. 900. occidentalis Walt. Fl. Car. 213. americana Gaertn. Fr. & Sem. 2 : 425. Siegesbeckia Michx. Fl. Bor. Am. 2: 134. 1803. Perennial; stem glabrous, or puberulent above,usually much branched, narrowly 4-winged, 3°-7high, the branches also winged and thin, ovate, or the upper oblong, opposite,minutely rough-pubescent on both sides, or gla-brate, acuminate at the apex, narrowed or con-tracted below into slender margined or nakedpetiole, serrate, 4-io long, i-2,¥ wide; headsnumerous, 6-i2 broad, corymbose at the endsof the stem and branches; involucre oblong-cam-panulate, 2-2&g
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
