BUCKWHEAT FAMILY 



65 



1470 



1471 



1474 



1473 



1475 



1476 



1477 



1478 



1470. Polygonum natans 



1471. Polygonum coccineum 



1472. Polygonum hydropiperoides 



1473. Polygonum Hydropiper 



1474. Polygonum punctatum 



1475. Polygonum Persicaria 



1476. Polygonum pennsylvanicum 



1477. Polygonum lapathifolium 



1478. Polygonum Convolvulus 



