. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. COMPOSITE 153 7. H. pamUus, Nutt. Stem simple, 1-2 ft. high; leaves lanceolate to ovate, in 5-7 pairs on short, margined petioles; the whole plant rough and hairy; heads few, on peduncles; bracts of the involucre in about 3 rows, sharp, whitish. Rooky Mts. and adjacent plains and river valleys. ' 29. COREOPSIS. Heads many-flowered, radiate; rays 5-8, neutral, 3-toothed; involucre double, the bracts of the outer row mostly shorter than those of the inner; receptacle flat and chaffy. Annual or perennial herbs wi
. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. COMPOSITE 153 7. H. pamUus, Nutt. Stem simple, 1-2 ft. high; leaves lanceolate to ovate, in 5-7 pairs on short, margined petioles; the whole plant rough and hairy; heads few, on peduncles; bracts of the involucre in about 3 rows, sharp, whitish. Rooky Mts. and adjacent plains and river valleys. ' 29. COREOPSIS. Heads many-flowered, radiate; rays 5-8, neutral, 3-toothed; involucre double, the bracts of the outer row mostly shorter than those of the inner; receptacle flat and chaffy. Annual or perennial herbs with mostly opposite leaves and large showy heads on long peduncles. 1. C. tinctdria, Nutt. Annual, glabrous, 1-2J ft. high; leaves once or twice pinnately divided; rays yellow, brown at the base, or more rarely all brown. Damp places, W. Sask. and Alta. , 30. BIDENS. Bub-Mariqold. Heads many-flowered, usually radiate; rays few or absent, neutral; involucre double, the outer row of bracts large and often leaf- like; receptacle chaffy, the chaff falling with the achenes; pappus of 2-6 per- sistent barbed awns. An- nual or perennial herbs with .opposite leaves and yeUow flowers. 1. B. fronddsa, L. Annual; stem erect, 1-3 ft. high, almost glabrous, fre- quently tinged with purple; leaves thin, at least the lower pinnately 3-S-parted; leaflets lanceolate to oblong, sharply serrate, usually pubescent be- neath; heads numerous, with very inconspicuous rays or none; corollas of the disk-. ' Fig. 88. — Bidens f Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hales, B. J. (Benjamin Jones), 1868-1945. Toronto : Macmillan Company of Canada
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
