COMPOSITE FAMILY. Composite. 



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- 

 Helianthus nual wifch generally three-ribbed and heart- 

 annuus c 5 



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 . 



Helianthus stem and rou n > bright green, lance-shaped 

 giganteus leaves, pointed and finely toothed, nearly 



Yellow stemless, the upper ones quite stemless, 



August- an( j a n growing alternately, but rarely 



September 



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 rays 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 

 Sunfto er small flowers f-1 inch broad. The stem 

 Helianthus slender and generally branched ; leaves 

 microcephaius mostly opposite, broad lance-shaped, 

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



July- with 5 _ 10 y e n w rays. 3-6 feet high. 



September . xl . . 



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 or 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 west to Neb. 



A species similar in aspect, color, situa- 

 Helianthus tion and time of bloom but the stem 



strumosus . . . , 



very smooth below, 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 



