WILD FLOWERS OF NEW YORK 319 



wide, toothed, sessile and usually opposite, spreading at right angles from 

 the stem. Heads of flowers yellow, about 2 inches broad; bracts of the 

 involucres ovate-lanceolate or lanceolate, the outer ones spreading. 



In dry woodlands, thickets and roadsides, Maine and Ontario to 

 Manitoba, south to Florida, Louisiana and Nebraska. Flowering from 

 July to September. 



Hairy Wild Sunflower 



Helianthus mollis Lamarck 



Plate 258 



A tall, perennial plant, with densely soft-hairy stem and downy-pubes- 

 cent leaves. Stem stout, usually but sparingly branched. Leaves ovate 

 with a heart-shaped base closely clasping the stem, softly pubescent on both 

 surfaces, opposite, 2 to 5 inches long, i to 2\ inches wide, with serrulate 

 margins. Heads of flowers yellow, 2 to 3 inches broad, borne solitary on 

 few or several stout peduncles. Disk yellow, about i inch broad, surrounded 

 by the numerous bright yellow ray flowers. Bracts of the involucre lance- 

 olate, somewhat spreading and canescent with whitish hairs. 



In dry or barren soil, Massachusetts to Iowa, Missouri and Kansas, 

 south to Georgia and Texas. Flowering in August and September. 



Pale-leaved Wood Sunflower 



Helianthus strumosus Linnaeus 



Plate 259 



Perennial by branched and sometimes tuberous-thickened rootstock; 

 stems smooth, sometimes glaucous below and branched above, usually 

 somewhat pubescent, 3 to 7 feet high. Leaves short petioled, ovate to 

 ovate-lanceolate, rough above, pale beneath, the margins serrate, 3 to 8 

 inches long, i to 2\ inches wide, mostly opposite, sometimes the upper 

 ones alternate. Heads yellow, 2\ to 4 inches broad, consisting of from 

 five to fifteen neutral ray flowers surrounding the yellow disk flowers. 

 Bracts of the involucres lanceolate and ciliate. Receptacle with pubescent 

 chaff. 



