16. 
lyrata, Lynn. N. 
dentata, Torr. & Gray 
laevigata, De C. 
Canadensis, Linn. Sickle-pod. 
Erysimum, Linnaeus. Treacle Mustard, 
cheiranthoides, Linn. 
Arkansanum, Mutt. 
Sisymbrium, Linnaeus. 
Officinale, Scop, 
camas cans. Nutt. 
Sinapis, T'ournefort . 
arvensis, Linn, 
nigra, Linn. 
Hedge Mustard. 
Introduced 
Mustard. 
Field Mustard. Introduced. 
Black Mustard. Introduced. 
Draba, Linnaeus. Whitlpw Grass. 
brachycarps, Nutt, 
cuneifolia, Nutt, 
Caroliniana, Waltr. 
Lepidium, Linnaeus. Pepper Grass. 
Virginicum, Linn. Wild Pepper Grass. 
Capsella, Ventenat. Shephard's Purse. 
bursa pastor is, Moench. Introduced. 
CAPPARIDACEAE The Caper Family 
Synandropsis, De Candolle. 
pentaphylla, De C. Introduced. S. 
Polansia, Rafinesque. 
gravedens, Raf. 
Violaceae The Violet Family 
Viola, Linnaeus. Violet. 
cucullata, Ait. 
Blue V 10 let 
