Salix SALICACEAE Populus 



S. cordata Muhl. 



Infrequent, on stream banks of the Piedmont. Mid- April, May. 



S. discolor Muhl. Glaucous Willow. 



Rare, in the Piedmont area: moist hillside near Mt. Cuba (NC), 

 Commons, in 1875 (A); Leslie (Ce), J. B. Brinton, 10 May 1891 (P). 

 Late Feb., March. 



A small tree of moist ground. 



S. Caprea L. Goat Willow. 



Planted, and occasionally spreading. Introd. from Europe. 



S. humilis Marsh. Prairie Willow. 



Barrens and margins of woods; common in the Piedmont, be- 

 coming infrequent southward to Sussex and Talbot Counties. 

 Mid-April to mid-May. 



S. tristis Ait. 



Infrequent in dry barrens and thickets of the Piedmont; rare 

 southward: near Capeville (No), Fernald, Long & Fogg, 5287 

 (P, T). Early April. 



S. sericea Marsh. Silky Willow. 



Infrequent, in wet places, chiefly in the Piedmont. Mid-April 

 to mid-May. 



A shrub or small tree. 



S. Bebbiana Sarg. (*S. rostrata of Gray's Man., ed. 7.) 



Rare: dry roadside 2}4 mi. s. of Wye Mills (Ta), R. R. Tatnall, 

 1123, 29 May 1931 (T, P); 2 mi. n. e. of Trappe (Ta), Earle, 2245, 

 4 July 1939 (P). 



S. purpurea L. Purple Willow. 



In low ground. New Castle County; cultivated for baskets and 

 for powder manufacture, and escaped. Nat. from Europe. 



Populus L. Poplar. Aspen. 

 P. alba L. White Poplar. 



Planted, and often spontaneous on roadsides and in clearings. 

 Introd. from Europe. I)-(;l>-^v (V^jL/ty ' 

 \ ^P. tremuloides Mx. American Aspen. 



TV 



One tree: on race bank at Greenbank (NC). Commons in 1864. 

 Late March, April. /-^rtj^J/vJ' .,, 'okv\ 



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