Class XIX. Order I. 295 



The large, golden flowers of this plant are very conspicu- 

 ous in wet situations in autumn. Its tops are usually eaten off 

 when accessible to cattle, who appear fond of it. Stem erect, 

 round, smooth. Leaves glabrous, lanceolate, slightly toothed, 

 tapering at both ends, slightly connate at base. Flowers erect. 

 Leaves of the outer calyx oblong, obtuse, waved up and down 

 on the margin ; those of the inner calyx shorter, oval, acute. 

 Ray very large, spreading, yellow. Seeds with commonly four 

 awns, in which circumstance our plant seems to differ from that 

 of Michaux. September, October. Annual. 



313. MIKANIA. 

 MIKANIA SCANDENS. Willd. Climbing Mikania. 



Stem climbing, glabrous ; leaves heart shaped, 

 repand-toothed, acuminate, the lobes divaricate, une- 

 qual ; flowers corymbed. Willd. 



Syn. EUPATORIUM SCANDENS. Mich. 



Stem twining, smooth. Leaves opposite, on long petioles, 

 glabrous, somewhat triangular or halberd shaped, their lower 

 half toothed, the upper tapering into a long, even, and very 

 acute point. Branches opposite, axillary, bearing small, termi- 

 nal corymbs. Flowers purplish white. Calyx with about four 

 leaves, and as many florets. Wet places. August, September. 

 Perennial. 



314, EUPATORIUM. 

 EUPATORIUM SESSIFOLIUM. L. Sessile leaved Eupatorium. 



Leaves sessile, clasping, distinct, ovate-lanceolate, 

 rounded at base, serrate, smooth ; stem smooth. Willd. 



An erect plant with corymbed flowers, as are all the subse- 

 quent species. Stem slender, smooth. Leaves opposite, closely 

 sessile, circular at base, tapering to a very long, acute point, 

 furnished with small teeth or scrratures, and paler underneath. 

 Peduncles downy. Flowers white, in a terminal corymb. Calyx 

 containing about five florets. Found in the woods ut Roxbury. 

 August. Perennial. 



