. Elementary botany [microform]. Botany; Botanique. i I, COMPOSITE. single row of tawny and fragile capillary rough bristles.—Hispid or hirsute and often glandular perennials, with entire or toothed leaves, and single or panicled heads of mostly yellow flowers ; summer and early autumn. (Name from u'p«f, a hawk.) § 1. Involucre not much imbricate, scarcely calyculate; achenes oblong ; pappus not copimis. 1. H. Oanadense, Michx. Stems simple, leafy, corymbed at the summit (1-3° high); leaves sessile, lanceolate or ovate-oblong, acute, remotely and very coarsely toothed, somewhat hairy, the uppe
. Elementary botany [microform]. Botany; Botanique. i I, COMPOSITE. single row of tawny and fragile capillary rough bristles.—Hispid or hirsute and often glandular perennials, with entire or toothed leaves, and single or panicled heads of mostly yellow flowers ; summer and early autumn. (Name from u'p«f, a hawk.) § 1. Involucre not much imbricate, scarcely calyculate; achenes oblong ; pappus not copimis. 1. H. Oanadense, Michx. Stems simple, leafy, corymbed at the summit (1-3° high); leaves sessile, lanceolate or ovate-oblong, acute, remotely and very coarsely toothed, somewhat hairy, the uppermost slightly clasping.—Dry woods, westward. § 2. Heads small; involucre cylindrical, scarcely imbricated. * Achenes columnar, not attenuate upward when mature ; panicle not virgate. 2. H. scabrum, Miohx. Stem rather stout (1-3° high), leafy rough-hairy, the stiff panijle at first racemose, at length rather corymbose; the thickish pedicels and the hoary 40-50-flowered involucre densely clothed with dark glandular bristles; leaves obovate or oval, nearly entire, hairy.—Dry open woods; common. 18. TARAXACUM, Haller. Dandelion. Head many-flowered, large, solitary on a slender hollow scape. Involucre double, the outer of short scales; the inner of long linear scales, erect in a single row. Achenes oblong-ovate to fusiform, 4-5-ribbed, the ribs roughened, the apex prolonged into a very slender beak, bearing the copious soft and white capillary pappus. —Perennials or biennials; leaves radical, pinnatifid or runcinate; flowers yellow. (Name from rapdaao,, to disquiet or disorder, in allusion to medicinal properties.) 1. T. officinale, Weber. Common Davdelion. Smooth, or at first pubescent; outer involucre reflexed. (T. Dens-leonis, Desf.) —Pastures and fields everywhere. Indigenous forms occur north- ward and in the Rocky Mountains. April-September.—After blossoming, the inner involucre closes, and the slender beak elongates and raises up the pappus while the fr
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany
