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 petiolcd, ovate to ovate-lanceolate, rough above, pale beneath, the margins serrate, 3 to 8 inches long, 1 to 21/2 inches wide, mostly opposite, sometimes the upper ones alternate. Heads yellow, 21/2 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.
In dry woods and on banks, Maine and Ontario to Minnesota, south to Georgia, Tennessee and Arkansas. Flowering from July to September.
Memoir 15 N. Y. State Museum
Pale-Leaved Wood Sunflower - Helianthus strumosus