MICHIGAN WEEDS. 



346 



Fig. 90 (82). 



Rutabaga. Brassica campestris L. Smooth 

 or sparingly hairy annuals, 30-90 cm. high; 

 lower leaves petioled, others clasping at the 

 base; flowers bright yellow; pod tipped with a 

 beak. Study and compare the beak and seeds 

 with other species. From Europe, an occa- 

 sional weed. 



Fig. 91 (83). 



Indian Mustard. Brassica juncea (L.) 

 Cosson. An erect and branching annual more 

 or less pubescent, 60-120 cm. high, lower leaves 

 petioled, lyrate-pinnatifid; flowers vellow- pods 

 1.5-1.8 cm. long on short erect pedicels, op- 

 pressed, four-sided, beak 2-4 mm. long. In- 

 troduced from Europe. Compare beaks and 

 seeds and the figures here represented. A bad 

 weed, often confused with two, three or more 

 others. 



