COMPOSITE FAMILY. Comoositse. 



and cross-fertilization takes place by the agency of in- 

 sects or the wind. The smaller bees (Halictus), the 

 bumblebee (Bombus vagans), and the smaller butterflies 

 are constant visitors. 1-2 feet high. Common in dry 

 or sandy meadows. Me. , west to S. Dak. , and southward. 

 The common garden sunflower ; an an- 

 Hehanthus nua j w j tn generally three-ribbed and heart- 

 shaped leaves, and golden yellow flowers, 

 1-10 inches broad. 2-12 feet high. Everywhere. 



A tall species with a rough dull magenta 

 Tall Sunflower . j i u • n. i u^ 



Helianthus stem and rou S n » bright green, lance-shaped 

 giganteus leaves, pointed and finely toothed, nearly 



Yellow stemless, the upper ones quite stemless, 



August- an( j a u g row ing alternatelv, but rarely 



September . ... ;L, ,. . , . 



some growing oppositely. The light yel- 

 low flowers about 2 inches broad, with 10-20 rays : the 

 disc dull yellow, with perfect florets, and the ra}-s neu- 

 tral, that is, without stamens or pistil. 3-12 feet high. 

 Common in swamps and on the borders of wet meadows, 

 from Me. , south, and west to Neb. 



A southerly species with many very 

 _ ma ' small flowers 4-1 inch broad. The stem 



**>li nt lo wt* r 



Helianthus slender and generally branched ; leaves 

 parviflorus mostly opposite, broad lance-shaped, 

 Yellow toothed, rough , and short-stemmed. Flow- 

 July- ers with 5 _ 10 ye ii ow rays# 3_e f ee t high. 



Common in thickets and on the borders of 

 woods. Pa. , south to Ga. , and west to Mo. 

 Woodland ^ slender, smooth-stemmed species (a 



Sunflower trifle fine-hairy above) with opposite lance- 

 Helianthus shaped, toothed, roughish, three- ribbed, 

 divaricatus and nearly Qr quite stemless leaves 3 _ 7 



inches long. The yellow flowers, 2 inches broad, are few 



or solitary. 2-5 feet high. Common in thickets and on 



borders of woods. Me., south, and w T est to Neb. 



A species similar in aspect, color, situa- 

 Helianthus # and time of bloQm . but the gtem 



very smooth below r , and often with a bloom ; 

 the leaves rough above, and pale (sometimes minutely 

 hairy) beneath. Flowers with 5-15 rays. 3-6 feet high. 

 Me., south to Ga., but mostly west to Minn, and Ark. 



510 



