. 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. yel-lowish; rays 15-30; chaff linear, acute, pubescentabove; achenes linear-oblong, glabrous or nearly so;pappus commonly of 2 lanceolate awns. On dry prairies, Mmnesota and Manitoba to Sas-katchewan, Missouri, Nebraska and Texas. Locallyadventive eastward. 13. Helianthus Dalyi Britton. judgeDalys Sunflower. Fig. 4473. Helianthus Dalyi Britton, Journ. N. -Y.
. 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. yel-lowish; rays 15-30; chaff linear, acute, pubescentabove; achenes linear-oblong, glabrous or nearly so;pappus commonly of 2 lanceolate awns. On dry prairies, Mmnesota and Manitoba to Sas-katchewan, Missouri, Nebraska and Texas. Locallyadventive eastward. 13. Helianthus Dalyi Britton. judgeDalys Sunflower. Fig. 4473. Helianthus Dalyi Britton, Journ. N. -Y. 2 : 89. 1901. Perennial by a fusiform tuber I-illong; stem slender, simple, roughish, ap-pressed-pubescent, about 2° high. Leavesfirm, conduplicate, drooping, finely rough-pubescent on both sides, narrowly lanceo-late, acuminate at both ends, distantly ser-rate with low teeth, the larger about 4long and 7 wide, all opposite or the up-permost alternate; heads usually solitaryand long-peduncled, rarely 2, about 33broad; involucral bracts narrowly lanceo-late with long subulate tips; rays acute;pappus 2 subulate awns; chaff of the re-ceptacle pubescent at the acute apex. On a dry bank. Sag Harbor, New York.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
