31 8 NEW YORK STATE MUSEUM 



the margins becoming revolute with age or in drying. Lower leaves 

 opposite, the upper ones alternate. Heads with twelve to twenty yellow 

 ray flowers and a purplish disk, the entire head 2 to 3 inches broad. Bracts 

 of the involucres linear-lanceolate and pubescent, their tips scarcely 

 spreading. Chaff of the receptacle entire or three-toothed. Pappus usually 

 two short awns. 



In swamps mainly near the coast, Long Island to Florida, Kentucky 

 and Texas. Flowering from August to October. 



Tall, Giant or Wild Sunflower 



IIcUtDitJiits gigaiitciis Linnaeus 



Plate .^^6 



Stems tall and rather stift", hairy and rough to the touch, 3 to 12 feet 

 high, often pvirplish, perennial by fleshy roots and creeping rootstocks. 

 Leaves sessile or short petioled, firm, lanceolate, very rough above, margins 

 serrate, long pointed at the apex, narrowed at the base, opposite or alternate, 

 2 to 6 inches long, one-half to i inch wide. Heads of flowers on long 

 peduncles, i^ to 2^ inches broad. Ray flowers ten to twenty in number, 

 surrounding the yellow or yellowish brown disk. Bracts of the involucres 

 lanceolate, ciliate, with slender, spreading tips. Receptacle chaffy, the 

 chaff oblong-Unear and pointed. 



In swamps and wet meadows, Maine to Ontario and Saskatchewan, 

 south to Florida, Louisiana and Colorado. Especially abundant in swamps 

 and marshes along the coast. Flowering from August to October. 



Rough or Woodland Sunflower 



He! ill a tJi lis divaricatiis Linnaeus 



Plate 257 



A slender perennial with erect stems, 2 to 7 feet high from perennial 

 roots and rootstocks; smooth nearly to the summit. Leaves rough on the 

 upper surface, lanceolate or ovate-lanceolate in shape, tapering at the 

 apex to a long point, 3 to .S inches long, one-fourth to one-half of an mch 



