*Thlaspi arvense Linnaeus. Field Pennycress, Frenchweed. Phen: Mar-Jun (-Sep); Apr-Jul (-Oct). Hab: Fields, disturbed areas. Dist: Native of Europe.

Origin/Endemic status: Europe

Synonymy: = BI, C, F, Fl4, FNA7, G, GrPl, Il, K1, K3, K4, Mi, NcTx, NE, NY, Pa, RAB, S, Tx, Va, W, WH3, WV, Al-Shehbaz (1986a), Rollins (1993)

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