150 YELLOW AND ORANGE 



BLACK MUSTARD: Brdssica nigra. 



Mustard Family. June — Sept. 



A plant 2-5 feet high, found in fields and 

 roadsides. Naturalized from Europe. Com- 

 mon throughout United States. 

 Flowers — Yellow, 4-parted, in loose clusters ter- 

 minating branches. Seed pods about 

 1/2 i ncn l° n g> 4-sided, lying close to the 

 stem. 

 Leaves — Variously lobed and toothed, terminal 

 lobe largest. 



YELLOW ROCKET; WINTER CRESS: Herb 

 of St. Barbara: Yellow Bitter, or Rocket Cress. 



Barbarea vulgaris. 



Mustard Family. Apr. — June. 



Flowers similar to those of preceding; seed 

 pods long, curved. Upper leaves stemless, 

 lower leaves usually in 5 divisions, terminal 

 one largest. Lake Superior northward and 

 westward; apparently introduced eastward. 



NOTES. 



