MICHIGAN WEEDS. 



315 



Fig. 43 (43). 



Patience Dock. Rumex palientia L. A tall, erect, perennial from a stout tap root, 

 GO-150 cm. high; lower leaves ovate-lanceolate, long-petioled, 80-30 cm. long, the up- 

 per narrower; panicle dense, whorled; wings cordate, nearly entire, 4-9 mm. long, one 

 tubercle, 2-3 mm. long, ovoid, the other two wanting or rudimentary. Becoming com- 

 mon; naturalized from Europe. 



