454 



WEED FLORA OF IOWA 



Figure 310A Figure 310B Figure 310C 



Fig. 310. A, Dalea (Dalea alopecuroides) . B, seed of Pink Dalea (.Dalea 



laxiflora) . C, seed-pod of the same species. 



(A, drawing by L. R. Collins; B and C, by C. M. King.) 



Pink Dalea (Dalea laxiflora Pursh.). 



Seeds one-tenth in. in length, generally triangular, somewhat 

 kidney-shaped, one end projecting beyond sac, which is circular 

 and has two micropilar processes on one side ; yellowish or brownish 

 in color ; leaves have pellucid dots. This should enable one to recog- 

 nize the impurity. Occasionally found in clover seed. 



Stemless Loco Weed (Oxytropis lamberti Pursh.). 



Pods coriaceous, silky pubescent, cylindrical; seed flattened, 

 brown, about 2 mm. broad and 2.5 mm. long. 



Figure 311A 

 Fig. 311. 



Figure 311B 



Figure 311C 



B, Bush Clover 



A, Stemless Loco Weed (Oxytropis lamberti). 

 (Lespedeza capitata), pod and seed. 

 (Drawings A, by Ada Hay den ; B, by Charlotte M. King.) 



Bush Clover (Lespedeza capitata Michx.). 



Pod ovate-oblong, one-sixth in. in length, sessile, 1-ovuled, pu- 

 bescent, brownish, reticulated, indehiscent, seed scarcely kidney- 

 shaped, one-tenth in. in length, greenish to purplish. 



