- prairie rocket - any of several North American plants of the genus Erysimum having large yellow flowers
--1 is a kind of flower
--1 is a member of Erysimum, genus Erysimum- prairie rocket - any of several western American plants of the genus Cheiranthus having large yellow flowers
--2 is a kind of flower
--2 is a member of Cheiranthus, genus Cheiranthus - prairie rocket - any of several western American plants of the genus Cheiranthus having large yellow flowers