An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language . talks,generally deeply lobed and armed with stiff, sharp, prickles. Headsusually large, many-flowered, the flowers all tubular, purple, yellow orrarely white. Involucre egg-shaped of many overlapping bracts, which arein many cases prickle-lipped, but sometimes unarmed. Receptacle flator convex, bristly. Aigrette of several series of plumose hairs. Flowers yellow C. slinosissimus Flowers purple or white. Involucre bract
An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language . talks,generally deeply lobed and armed with stiff, sharp, prickles. Headsusually large, many-flowered, the flowers all tubular, purple, yellow orrarely white. Involucre egg-shaped of many overlapping bracts, which arein many cases prickle-lipped, but sometimes unarmed. Receptacle flator convex, bristly. Aigrette of several series of plumose hairs. Flowers yellow C. slinosissimus Flowers purple or white. Involucre bracts all prickle-tipped C. lanccolatus Outer bracts prickle-tipped, inner bracts unarmed. Leaves divided into narrow lancc-shal^cd segments Leaves woolly beneath C. discolor Leaves green, both sides C. odoratus Leaves not divided into lance-shaped lobes, tiiough they may be lobed C. altissimus Involucre bracts not woolly beneath. Flower heads solitary C. nutans Flower heads in groups. Flower stems with few or no leaves or prickles C. muticus Ilower stems short, leafy and prickly . . C. crisfus Leaves not woolly . . 1 • . C. arvensis THISTLE FAMILY 699. Plate 1981. Carduus arvensis. 2. C. lanceolatus. 3. C. odoratus. 4. Onopordonacanthium. 700 COMPOSITAE Flowers yellow 1. C. spinosissimns, Walt. fFig. 2, pi. 197.) Yellow Thistle, (Cirsium sinnosissivnim, (Walt.) Scop.) Stem quite stout, 1 to 5 , woolly when young. Leaves in general outline lance-shaped, the up-per ones clasping the stem, margins deeply lobed and with strong pricklesat angles of the lobes. Heads 2 to 4 in. broad, the involucre bracts long,lance-shaped, with prickles at the margins. Flowers yellow. Mostly inmoist soil. May-Aug. Flowers purple, pinh or white 2. C. lanceolatns, L- (Fig. 2, pi. 198.) Common Spear Thistle.(Cirsium laiiceolatum, (L.) Hill.) Stem branched, 3 to 5 ft. high, more or less white woolly but not prckly or only moderately so. Leaves lance-shaped, divided into triangular lo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1910
