202 



WEED FLORA OF IOWA 



Fig. 116-A. Distribution of Yellow Field Sorrel. 



Field Sorrel (Oxalis corniculata L.). 



Description. — An erect or decumbent perennial herb, spreading 

 by numerous slender, pale runners; leaflets 3; flowers in eymose 

 clusters, yellow; peduncle ascending and sparingly pubescent. 



Fig. 117. Field Sorrel (Oxalis corniculata). Fields, gardens, etc. 

 (Photographed by Colburn. 1. Drawn by Charlotte M. King.) 



