DESCRIPTIVE MANUAL 



95 



Fig. 53-A. Distribution of Lady's Thumb. 



Water Pepper or Smartweed (P. hydropiperoides Mx.). 

 Description. — A perennial not acrid; leaves narrowly lanceolate 

 or oblong ; small 'flesh-colored flowers in erect slender spikes ; smooth 

 achenes sharply triangular. 



Fig. 54. Water Pepper (Polygonum hydropiperoides). Common in low places, 



fields, etc. 

 (Photographed by Colburn.) 



