Fanweed, Field Pennycress, Pennycress, Stinkweed: Thlaspi arvense (Synonym: Teruncius arvensis) - Glabrous annual. Pods roundish with a broad margin and a deep notch at the top.
Alpine Pennycress, Glaucous Pennycress, Rock Pennycress, Wild Candytuft: Thlaspi montanum (Synonyms: Noccaea montana, Thlaspi alpestre, Thlaspi fendleri, Thlaspi fendleri var. glaucum, Thlaspi montanum var. monanum) - Glaucous perennial. Pod shield-shaped with a narrow margin, the top either not notched or shallowly notched.