190 OCTANDRIA, TRIGYNIA. 



Bind-weed Polygonum. Black -bind-wecd. Climb- 

 ing Buckwheat, 



A climbing' species, with heart-shaped leaves and white 

 flowers. In hedges, and along fences bordering cultivated 

 fields. Introduced, but naturalized. Not uncommon. Annual. 

 July, August. 



scandens. 14. P. flowers octandrous, trigynous ; leaves 

 broad-cordate ; stipules truncate, naked ; stem 

 twining, glabrous; calix of the mature fruit 

 winged . — Mich. 



Icon. Pluk. aim. t. 177. f. 7. 



American climbing Buckwheat. 



Also a scandent species^ resembling No. 13, but easily dis- 

 tinguished from it by attending- to the different shape of the 

 leaves above mentioned, aiid by the fruit. In similar places. 

 Frequent. Perennial. July, August. 



