. 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. 13. Senecio tomentosus Michx. WoollyRagweed. Ashwort. Fig. 4622. .S. tomentosus Michx. Fl. Bor. Am. 2: 119. 1803. Perennial, more or less densely and persistentlytomentose or woolly-canescent; stems rather stout,solitary, or sometimes tufted, i°-2i° high. Basaland lower leaves ovate-lanceolate, oblong or rarelj^spatulate, long-petioled. erect, very obtuse, 2-6long, ¥-2 wide,
. 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. 13. Senecio tomentosus Michx. WoollyRagweed. Ashwort. Fig. 4622. .S. tomentosus Michx. Fl. Bor. Am. 2: 119. 1803. Perennial, more or less densely and persistentlytomentose or woolly-canescent; stems rather stout,solitary, or sometimes tufted, i°-2i° high. Basaland lower leaves ovate-lanceolate, oblong or rarelj^spatulate, long-petioled. erect, very obtuse, 2-6long, ¥-2 wide, crenate-dentate, narrowed ortruncate at the base; stem leaves few and distant,small, linear-lanceolate or spatulate, crenate orrarely laciniate; heads several or numerous, co-rymbose, mostly long-peduncled, 8-io broad;involucre cylindric, or narrowly campanulate. itsbracts linear-lanceolate, acute or acuminate, atlength glabrate, with or without a few small outerones; rays lo-iS; achenes hispidulous, at leaston the angles; pappus white. In moist soil, southern New Jersey to Florida,Louisiana, Texas and Arkansas. April-June. 14. Senecio plattensis Nutt. Prairie Rag-wort. Fig. 4623. i. plattensis Nutt. Trans. Am.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
