. 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. 33S CICHORIACEAE. Vol. III. 10. Nabalus crepidineus (Michx.) DC. Corymbed Fig. 4119. 1803. Prenanthes crepidinea Michx. Fl. Bor. Am. 2 : 84. Nabalus crepidineus DC. Prodr. 7: 242. 1838. Stem glabrous or very nearly so below, corym- bosely branched and sometimes puberulent above, stout, 5°-9° high. Leaves thin, the basal and lower ones hastate
. 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. 33S CICHORIACEAE. Vol. III. 10. Nabalus crepidineus (Michx.) DC. Corymbed Fig. 4119. 1803. Prenanthes crepidinea Michx. Fl. Bor. Am. 2 : 84. Nabalus crepidineus DC. Prodr. 7: 242. 1838. Stem glabrous or very nearly so below, corym- bosely branched and sometimes puberulent above, stout, 5°-9° high. Leaves thin, the basal and lower ones hastate, ovate, oblong, or deltoid, sharply den- tate, lobed, or incised, sometimes 10' long, usually with broadly winged petioles; the upper much smaller, sessile or short-petioled, narrowed at the base, not clasping, ovate, deltoid, or lanceolate, acute; heads numerous, pendulous, short-peduncled, corymbose-paniculate,1 4"-6" broad, 20-35-flowered; involucre oblong or oblong-campanulate, hirsute, S"-8" long, about 3" thick, dark green or purplish, its principal bracts 12-15, with several very short outer ones; flowers cream color; pappus brown. In fields and thickets, western Pennsylvania and New York to Kentucky, west to Minnesota and Kansas. Family 45. AMBROSIACEAE Reichenb. Consp. 112. Ragweed Family. 1828. Annual or perennial herbs, monoecious, or sometimes dioecious, many of them weeds, some shrubby, with alternate leaves, or the lower opposite, and small heads of greenish or white flowers subtended by an involucre of few, separate or united bracts, the pistillate heads sometimes larger and nut-like or bur-like. Stamihate and pistillate flowers in the same heads, or in separate heads. Receptacle chaffy. Pistillate flowers with no corolla, or this reduced to a short tube or ring; calyx adnate to the i-celled ovary, its limb none, or a mere border; style 2-cleft. Stami- nate flowers with a funnelform tubular or obconic 4-5-lobed corolla; stame
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
