CRUCIFERAE (MUSTARD FAMILY) 197 



Sheep are fond of Winter Cress and cattle feed on it with as 

 greedy an appetite as on rape or turnips or other cultivated cruci- 

 fers ; for this reason its planting as forage has been advocated, but 

 its weedy habit of never "staying put" should be considered. 



Means of control 



Spudding or hoe-cutting the rosettes from the roots in the first 

 year of growth, and closely cutting the flowering stalks while they 

 are in first bloom. 



SCURVY GRASS 



Barbarea verna, Asch. 

 (Barbarea prcecox, Sm.) 



Introduced. Perennial. Propagates by seeds. 



Time of bloom: April to June. 



Seed-time: June to August. 



Range: Massachusetts to Virginia, and westward to Missouri. 



Habitat: Fields, meadows, and waste places. 



Often cultivated for winter salads, frequently escaping and now 

 thoroughly naturalized as a weed. A more slender plant than the 

 preceding species, its root-leaves more finely divided, having five 

 to eight pairs of lateral segmemts. Flowers smaller and a paler 

 yellow. Pods much longer, sharply four-sided, slightly compressed 

 on short and very thick pedicels. Seeds smaller, more numerous, 

 brown and flattened. 



Means of control the same as for Winter Cress. The smooth, 

 glossy surface of these two Mustards renders them impervious to 

 injury from sprays. 



BULBOUS CRESS 

 Carddmine bulbdsa, B.S.P. 



Other English names: Bitter Cress, Spring Cress. 



Native. Perennial. Propagates by seeds and by tuber-bearing 



rootstocks. 



Time of bloom : April to June. 

 Seed-time: May to July. 

 Range: Nova Scotia to Minnesota, southward to Florida and 



Texas. 

 Habitat: Wet meadows, swamps, sides of streams, and ditches. 



