Scientific name: Thlaspi perfoliatum L. Sp. Pl. 2: 646. (1753).
- Common name: clasping leaved pennycress
- [ON?] [QC?]
- Chromosome numbers: n = 14, 21; 2n = 14, 42
- Canadian status: introduced, naturalized
- Lifeform: annual
- Ecology: fields, thickets, streamsides and flood plains; limestone cliffs; roadsides; rocky and calcareous waste places
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