. 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. PI. 3: 1636. puniila Lodd. Bot. Cab. pi. 147. spicata Kuntze, Rev. Gen. PI. 349. 1891. Glabrous or nearly so, 2°-6° high. Lowerleaves linear-lanceolate or linear-oblong,usually blunt-pointed, sometimes l° longand 5 wide, the upper linear or even subu-late, somewhat or obscurely punctate; spikegenerally dense, 4-i5 long; heads short-oblong or cylindric, S
. 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. PI. 3: 1636. puniila Lodd. Bot. Cab. pi. 147. spicata Kuntze, Rev. Gen. PI. 349. 1891. Glabrous or nearly so, 2°-6° high. Lowerleaves linear-lanceolate or linear-oblong,usually blunt-pointed, sometimes l° longand 5 wide, the upper linear or even subu-late, somewhat or obscurely punctate; spikegenerally dense, 4-i5 long; heads short-oblong or cylindric, S-ij-flowered, 2-4broad, mostly sessile; involucre subcam-panulate, rounded or obtuse at the base,its bracts appressed, oblong, obtuse andscarious-margined at the apex, obscurelypunctate, imbricated in 4-6 series; flowersblue-purple, occasionally white; pappusroughened or barbellate. In moist soil, Massachusetts to Florida, On-tario, Wisconsin, Kentucky, Louisiana and Ari-zona. Called also rough- or backache-root,throat-wort, prairie-pine, colic-root. Lacinaria kansana Britton, of Kansas, differs in having a short, very dense spike, a more leafystem, the involucral bracts purple and the pappus
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
