. 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 102d meridian. Botany; Botany. 6. Crepis biennis L. Rough Hawksbeard. Fig. 4091. Crepis biennis L. Sp. PI. 807. 1753. Biennial, or sometimes annual; stem pubescent or hirsute, leafy, at least below, branched above, 2°-3° high. Leaves runcinate-pinnatifid, usually hirsute, 2'-6' long, oblong or spatulate, the lower and basal ones narrowed into petioles and some- times merely dentate, the uppe
. 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 102d meridian. Botany; Botany. 6. Crepis biennis L. Rough Hawksbeard. Fig. 4091. Crepis biennis L. Sp. PI. 807. 1753. Biennial, or sometimes annual; stem pubescent or hirsute, leafy, at least below, branched above, 2°-3° high. Leaves runcinate-pinnatifid, usually hirsute, 2'-6' long, oblong or spatulate, the lower and basal ones narrowed into petioles and some- times merely dentate, the uppermost lanceolate, clasping, their margins not revolute; heads sev- eral, subcorymbose, i'-iJ' broad; involucre canes- cent or pubescent, 4"-6" high, its principal bracts linear-lanceolate, downy within, the outer ones linear-oblong or lanceolate, spreading; achenes oblong, slightly narrowed above, 13-striate, gla- brous. In waste places, Vermont to Pennsylvania, Mich- igan, and in ballast about the seaports. Naturalized or adventive from Europe. June-Aug. 7. Crepis intermedia A. Gray. Small-flowered Gray Hawksbeard. Fig. 4092. Crepis intermedia A. Gray, Syn. Fl. 1: Part 2, 432. 1884. Perennial, cinerous-puberulent or scurfy; stem rather slender, 1-3-leaved, i°-2° high, naked and branched above. Basal leaves lanceolate or oblong-lanceolate, laciniate-pinnatifid, long-acuminate at the apex, nar- rowed at the base, 4'-6' long; stem leaves lanceolate, sessile, less divided; heads several, 6"-g" broad, 5-8- flowered; involucre oblong-campanulate, its principal bracts 5-8, lanceolate or linear-oblong, canescent, acut- ish, somewhat keeled by the thickened midrib when old, the outer ones few and short; achenes oblong, narrowed above, not beaked, strongly 10-ribbed. In dry soil, western Nebraska (according to Williams) ;' Colorado to California, Montana and British Columbia. Please note that these images are extracted from scanned page images that may
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
