SMILAX 301 



Smilax hispida Muhlenberg 1843 Prickly Greenbriar 



Stem high-climbing, perennial and woody, thickly armed as a rule 

 with long slender bristles; leaves ovate-lanceolate to ovate or rounded, 

 margin usually fringed with minute teeth, or entire, tip pointed, base 

 rounded or cordate, smooth above and below, thin, veins 7-9, 5-15 cm. 

 long, 3-12 cm. wide, petioles 1-2 cm. long; umbels 6-20-flowered on 

 peduncles 3-4 cm. long, flowers greenish, 5 mm. wide, on pedicels 5-10 

 mm. long; berries bluish black, 5-6 mm. diam. ; hispida, prickly, re- 

 ferring to the stem. 



Occasional in thickets and the edges of woods in the southern half 

 of the state; Ontario-Va-Tex-Nebr-Minn. 



Smilax rotundifolia Linne 1753 Greenbriar, Catbriar 



Stem high-climbing, perennial and woody, sparsely armed with stout 

 prickles, arising from somewhat tuberous rootstocks; leaves ovate to 

 nearly round, margin entire or nearly so, tip abruptly short-pointed, base 

 rounded or cordate, smooth and shining above, smooth below, thick, veins 

 5-7, 4-8 cm. long, 3-8 cm. wide, petioles about 1 cm. long, tendrils usually 

 2-3; umbels 2-10-flowered, on peduncles 1-2 cm. long, flowers greenish, 

 4-5 mm. wide, on pedicels 1 cm. long; berries bluish black, 1-3-seeded, 

 5-6 mm. diam. ; rotundifolia, round-leaved. 



In woods along streams throughout the forest district; Ontario- Ga- 

 Tex-Colo-Minn. 



