- yellow rocket, rockcress, rocket cress, Barbarea vulgaris, Sisymbrium barbarea - noxious cress with yellow flowers; sometimes placed in genus Sisymbrium
--1 is a kind of weed
--1 is a part of Barbarea, genus Barbarea - rock cress, rockcress - any of several rock-loving cresses of the genus Arabis
--2 is a kind of cress, cress plant
--2 is a member of Arabis, genus Arabis
--2 has particulars:sicklepod, Arabis Canadensis; tower cress, tower mustard, Arabis turrita