. 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. , Alabama, Illinois, Minnesota, Ne-braska and Texas. 12. Eupatorium sessilifolium L. Up-land or Bastard Boneset. Fig. 4163. Eupatorium sessilifolium L. Sp. PI. 837. 1753. Glabrous throughout, or pubescent above,branched near the summit, 2°-6° high. Leavesopposite, or the lower rarely in 3s, closely ses-sile, lanceolate or ovate-lanceolate, long-acumi-nate, thin, sh
. 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. , Alabama, Illinois, Minnesota, Ne-braska and Texas. 12. Eupatorium sessilifolium L. Up-land or Bastard Boneset. Fig. 4163. Eupatorium sessilifolium L. Sp. PI. 837. 1753. Glabrous throughout, or pubescent above,branched near the summit, 2°-6° high. Leavesopposite, or the lower rarely in 3s, closely ses-sile, lanceolate or ovate-lanceolate, long-acumi-nate, thin, sharply serrate, 3-6 long, h-i¥wade, inflorescence cymose-paniculate; heads4-5 high, about 5-flowered; involucre cam-panulate, its bracts linear-oblong, imbricated inabout 3 series, the inner obtuse, the outer acut-ish, shorter; flowers white. In dry woods, Vermont to Massachusetts, Penn-sylvania, Georgia, Alabama and Missouri. A related plant, described under the nameEupatorium sessilifolium Brittoniamim Porter,has leaves ovate or oblong-ovate, sparingly andfinely serrate, firm, rounded at the base, acute, theupper I-2 long, 6-9 wide, pinnately veined,dark green; cymes dense, their branches It is known only from Budds Lake, N. J. 360 COMPOSITAE. Vol. III.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
