176 YELLOW AND ORANGE 



1. THIN-LEAVED or TEN-PETALED SUN- 

 FLOWER: Helidnthus decapetalus. 



Composite Family. Aug. Sept. 



A plant 25 feet tall, found in moist woods, 



beside streams. Eastern United States to 



Minnesota, Missouri and southward. 



FLOWER-HEADS Yellow, 2-3 inches broad, rays 



about 10. 



LEAVES Egg-shaped, pointed, opposite, smooth 

 or slightly rough. Plant stem rough 

 above; smooth below, 2-5 feet tall. 



2. LARGER BUR-MARIGOLD: Brook Sun- 

 flower. Bidens laevis. 



Composite Family. Aug. Oct. 



Plant 12 feet high, found in swamps, wet 



places. New England to Minnesota and 



southward. 



FLOWER-HEADS Yellow, 121/2 inches across, rays 



810. Seed vessels with 24 prongs. 

 LEAVES Opposite, toothed, narrow lance-shaped, 

 seated on stem. 



NOTES. 



