116 COMMON CANADIAN WILD PLANTS. 



high. Boot-leaves simple, rounded, usually cordate, crenate- 

 ly-taothed, long-petioled. Stem leaves sessile, lanceolate, 

 deeply pirmatifid. Heads in a corymb nearly like an umbel. 

 Swamps, often in gardens. 



Var. ObOVa'tUS, Torr. and Gr., has root-leaves round- 

 obovate with a cuneate or truncate base. 



Var. Balsam' itse, Torr. and Gr., has root-leaves oblong, 

 spathulate, or lanceolate, serrate. 



Var. laneeola'tus, Oakes, has thin lance-oblong root- 

 leaves on long petioles. Atl. Prov. 



4. S. integer'rimus, Nutt. Bays conspicuous. Stem 

 woolly-pubescent when young, soon smootliish and green. 

 Leaves oblong-lanceolate or oblong, the upper bract-like. 

 Heads in a naked corymb, the scales green-tipped. N.W. 



5. S. eanus, Hook. Low, persistently woolly. Leaves 

 small, spathulate to oblong. Bays conspicuous. N.W. 



6. S. Jaeobsea, L. (COMMON BAGWORT.) Flowers golden 

 yellow, the heads forming a spreading corymb. Stem erect, 

 2-3 feet high, branching, glabrous or somewhat cottony. 

 Leaves numerous, lyrate, bipinnatifid, the lower with broad 

 segments, the upper with linear divisions, all glabrous. 

 A troublesome weed in the Atl. Prov. Bare westward. 



20. IN'ULA, L. ELECAMPANE. , 



I. Hele'nium, L. (COMMON ELECAMPANE.) Stem stout, 

 2-5 feet high. Boot-leaves very large, ovate, petioled. 

 Stem-leaves clasping. Bays numerous, narrow. Boadsides. 



31. CHKYSOP'SIS, Nutt. GOLDEN ASTER. 



C. villo'sa, Nutt. Hirsute and villous-pubescent. Leaves 

 narrowly oblong, hoary, bristly-ciliate towards the base. 

 Stem branching, the branches terminating in the single 

 heads. Dry plains, N.W. 



32. APLOPAPPUS,Cass. 



1. A. Spinulo'SUS, DC. Low, perennial, branches very 

 minutely hoary-pubescent. Leaves narrow, pinnately or 

 tripinnately lobed, the lobes and teeth bristly, as are also 

 the scales of the involucre, Dry plains, N. W, 



