COMPOSITE FAMILY 233 



Mesadenia florldana. Indian plantain. Indian collard. 

 Heads whitish, cylindrical, in wide terminal inflorescence. 

 Involucre bracts 5, winged. Pappus soft bristles. Stems 

 grooved, 2-4 ft. tall. Leaves smooth, thick, strongly nerved, 

 oval or broadest near base, 2-7 in. long, toothed. Pinelands. 

 Blooming from spring to fall. Fla. 



Mesadenia lanceolata. Heads similar to above species, few. 

 Stems not grooved. Leaves narrow, 3-nerved, entire or 

 toothed, 4-15 in. long, slightly glaucous. Low pinelands. 

 Fla. to Ga. and La. 



Emilia sonchifolia. Tassel-flower. Paint brush. Heads 

 red or reddish orange, in stalked terminal clusters. Pappus 

 hairlike bristles. Plants 1-3 ft. tall, somewhat hairy. Leaves 

 oblong, toothed, 2-6 in. long, clasping stem. Koadsides and 

 waste places. Blooming all the year. Southern Florida. 



Carduus spinosissimus. Thistle. Flowers purple or yel- 

 low, heads 2-3 in. across, surrounded by spiny bracts. Pap- 

 pus hairlike bristles. Plants 1-5 ft. tall. Leaves spiny, 

 deeply cut and toothed, 3-15 in. long. Sandy soil. Blooming 

 chiefly from spring to fall. Fla. to Me. and Texas. 



Carduus Nuttallii. Thistle. Heads pale purple, nearly 1 

 in. across, many. Plants 3-15 ft. tall. Stems winged. Dry 

 soil. Blooming in spring and summer. Fla. to S. C. and 



Miss. 



GEOUP II 



Heads with Ray- Flo webs 

 Hays very small in Solidago, Euthamia, and Flaveria page 



Shrub. Rays yellow Borrichia 237 



Herbaceous Plants 

 leaves chiefly basal 



Rays white or pink, heads solitary Chaptalia 238 



Rays white or purple, heads not solitary Erigeron 236 



Rays yellow, Ivs. deeply lobed Berlandiera 236 



Rays yellow, Ivs. entire or toothed Helenium 238 



LEAVES OPPOSITE 



Rays yellow, Ivs. lobed Polymnia 236 



Rays yellow, tiny, Ivs. entire Flaveria 238 



Rays yellow, showy, Ivs. entire or divided. . .Coreopsis 237 



Rays yellow, or white, Ivs. divided and toothed . . Bidena 237 



