WILD FLOWERS OF NEW YORK 305 



Heads 6 to 8 lines broad; stem leaves narrowly 



lanceolate 43 A. tradescanti 



Stem leaves linear-lanceolate to subulate, mostly 



entire 

 Heads scattered, 6 to 9 lines broad; upper leaves 



linear 44 A. f a x o n i 



Heads numerous, 4 to 7 lines broad; upper leaves 

 subulate; involucre subhemispheric, 2^ to 

 3 lines high; rays usually white 



Paniculately branched, bushy 



45 A. ericoides 



Simple, or with slender ascending branches 



46 A. pri ngl ei 



Bracts of the involucre without herbaceous tips 

 Bracts linear-subulate, acuminate 



Leaves firm, 3 inches long or less, entire or sparingly serrate 



47 A. nemoralis 



Leaves thin, 6 inches long or less, sharply serrate 



48 A. acuminatus 

 Bracts oblong or oblong-lanceolate, obtuse or acutish; leaves narrow, 



entire 49 A. ptarmicoides 



D Leaves fleshy, narrow, entire; plants of salt marshes or saline soil 



Perennial; heads 6 to 12 lines broad; involucral bracts lanceolate, acuminate 



50 A. tenuifolius 



Annual; heads 3 to 5 lines broad; involucral bracts linear-subulate; disk flowers 

 fewer than the very short rays SiA.subulatus 



Large-leaved Aster 



Aster macrophyllus Linnaeus 



Plate 340 



Stems rather stout, rough, reddish, angled, i to 3 feet high from a 

 thick, long, perennial rootstock. Basal leaves forming large patches, three 

 to four to each stem, broad, cordate, with a large, irregular sinus at the base, 

 rough above, harsh, thick, the marginal teeth with curved sides; petioles 

 long and slender, upper leaves oblong with short, broadly winged petioles, 



