Erysimum inconspicuum (S.Watson) MacMill.
Family: Brassicaceae
shy wallflower, small worm-seed mustard
[Cheirinia inconspicua (S.Watson) Britton,  more...]
Erysimum inconspicuum image
Christopher Noll  
Erysimum inconspicuum image
Christopher Noll  
Etymology: Erysimum: from the Greek eryomai, "to help or save," because some of the species supposedly had a medicinal value
Plants: erect, perennial, 12"-32" tall forb, very hairy; stems usually unbranched
Leaves: usually erect or pointing upward, linear to oblong, mostly toothless
Flowers: pale yellow, 4-parted, 1/2"-3/4" wide; blooms May-Aug.
Fruits: erect, long, thin, 4 -angled pod; seeds in 1 row
Habitat: dry; prairies, upland woods
Conservation Status: Introduced - naturalized
Erysimum inconspicuum image
Christopher Noll  
Erysimum inconspicuum image
from USDA Plants website  
Erysimum inconspicuum image
Erysimum inconspicuum image
Erysimum inconspicuum image
Erysimum inconspicuum image