. 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 23. CHICORY FAMILY 7. Nabalus Boottii DC. Bootts Rattle-snake-root. Fig. 4116. Nabalus Boottii DC. Prodr. 7: 241. Boottii A. Gray, Syn. Fl. i: Part 2, Glabrous below, commonly pubescent above;stem simple, 4-i2 high. Leaves thickish, thebasal and lower ones ovate, hastate, or deltoid,petioled, mostly obtuse, entire, or denticulate, i-2long, the
. 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 23. CHICORY FAMILY 7. Nabalus Boottii DC. Bootts Rattle-snake-root. Fig. 4116. Nabalus Boottii DC. Prodr. 7: 241. Boottii A. Gray, Syn. Fl. i: Part 2, Glabrous below, commonly pubescent above;stem simple, 4-i2 high. Leaves thickish, thebasal and lower ones ovate, hastate, or deltoid,petioled, mostly obtuse, entire, or denticulate, i-2long, the upper ovate or oblong, usually entire,short-petioled or sessile, much smaller; headsseveral or numerous. io-i8-flowered, erect, spread-ing, or some of them pendulous, racemose orsomewhat thyrsoid, 4-5 broad ; involucre cam-panulate-oblong. 21-^, thick, 4-7 long, darkpurplish-green, its principal bracts 8-10, obtuse orobtusish, with several shorter outer ones; flowerswhitish, odorous; pappus brownish. Alpine summits of the mountains of northern NewEngland and New York.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
