A GUIDE TO THE WILD FLOWERS 279 



long, coarsely toothed, sometimes clustered towards the sum- 

 mit of the stem. Flowers white, the heads few, about i in. 

 wide. In rich woods, Labrador and Ontario, south, mostly 

 in the uplands, to Georgia. August. Fig. 855. 



856. White-topped Aster. Sericocarpus asteroides. A stiff 

 perennial 1-2 ft. high. Leaves oval, or slightly wider towards 

 the tip, hairy on the margin, rather finely toothed, 23^-4 in. 

 long, narrowed into a stalk-like base, the upper leaves smaller, 

 and sometimes toothless. Flowers white, the heads few, in 

 a flat topped cluster. The bracts beneath the flower head 

 are green, and the tips of them slightly recurved. In dry 

 places, Maine to Florida, and westward. August. Fig. 856. 

 A related species, S. linifoliiis, has narrowly linear leaves, 

 without marginal hairs, and is found in similar places. 



857. Daisy Fleabane. Erigeron annuiis. An erect, hairy, 

 weedy plant, 1-4 ft. high. Leaves thin, lance-oval, toothed, 

 23^-5 in. long, stalked, the upper stalkless, smaller and 

 narrower. Flowers white, the heads numerous, about ^ in. 

 wide, the rays very numerous. In dry places. Nova Scotia to 

 Virginia, and westward. Very common as a weed. June- 

 October. Fig. 857. A related plant, E. ramosiis, has narrower 

 stem, leaves which have no teeth. It is found from Nova 

 Scotia to Florida, and westward, and is also very common. 



858. Tall White Aster. Aster paniculatus. A smooth- 

 stemmed much branched Aster, 2-6 ft. high. Leaves oblong, 



