. 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. Genus yi. THISTLE FAMILY. 501 2. Thelesperma intermedium Thelesperma. Fig. 4520. Thelesperma intermedium Rydb. Bull. Torr. Club27: 631. 1900. Perennial from a deep woody root and slen-der rootstocks; stem rigid, usually muchbranched, i°-il° high. Leaves usually numer-ous, ii-2 long, bipinnately divided into entire,rigid, linear segments, but less compound thanthose
. 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. Genus yi. THISTLE FAMILY. 501 2. Thelesperma intermedium Thelesperma. Fig. 4520. Thelesperma intermedium Rydb. Bull. Torr. Club27: 631. 1900. Perennial from a deep woody root and slen-der rootstocks; stem rigid, usually muchbranched, i°-il° high. Leaves usually numer-ous, ii-2 long, bipinnately divided into entire,rigid, linear segments, but less compound thanthose of the preceding species; outer bracts ofthe involucre lanceolate-subulate, usually muchshorter than the inner ones, which are unitedto about the middle; rays and achenes similarto those of the preceding. In dry soil, on plains, Nebraska and Wyomingto Colorado and New Mexico. In our first editionincluded in T. ambiguum A. Gray, of the South-west.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
