CEUCIFERAE (MUSTARD FAMILY) 



191 



Time of bloom: May to June. 



Seed-time: July to August. 



Range: Ontario to Ohio, southward to Virginia. 



Habitat: Roadsides, waste places, and about farmyards. 



In Europe the leaves of this plant are 

 sometimes used for flavoring food in place 

 of garlic, which they resemble in odor. In 

 this country the plant occasionally flavors 

 milk and butter through being eaten by 

 milch cows. 



Stem one to three feet high, rather stout, 

 smooth, erect, and branching. Leaves 

 broadly oval or heart-shaped, sometimes 

 nearly round, coarsely toothed, smooth or 

 with a slight hairiness on midvein and 

 margins, the lower ones six or more inches 

 broad with long petioles, the upper ones 

 smaller and short-stalked. Flowers in short 

 racemose clusters, white, nearly a half-inch 

 broad. Siliques one to two inches long, 

 stiff and four-angled, slender, with valves 

 keeled and three-nerved. Seeds brown, 

 oblong, and ridged, one row in each cell. 

 (Fig. 134.) 



Means of control 



Deep cutting of autumn leaf-tufts from 

 the roots with hoe or spud ; cutting or 

 hand-pulling the fruiting stalks before the 

 first flowers mature. 



HEDGE MUSTARD 



Sisymbrium officinale, Scop. 



Introduced. Annual or biennial. Propagates by seeds. 



Time of bloom : May to November. 



Seed-time: July to December. 



Range: Throughout North America except the extreme North. 



Habitat : Fields, roadsides, and waste places. 



FIG. 134. Garlic 

 Mustard (Alliaria offici- 

 nalis). X i- 



