| Draba crassifolia Graham | |
| Publ. & Syn. | Graham, Edinburgh New Philos. J. 7: 182 (1829). Holotype (E): U.S.A.: Plant grown from seeds collected in Rocky Mountains between "lat. 52 and 57" by T. Drummond. |
| Notes | Draba crassifolia occurs also in northern Scandinavia (therefore amphi-Atlantic) but does not reach the Arctic there. Petrovsky: Reports of D. crassifolia from the Asian Arctic are erroneous and refer to D. tschuktschorum. Elven: Windham (2004) presented evidence that D. crassifolia is an allopolyploid from D. albertina (2n = 24) and D. fladnizensis (2n = 16). |
| Chromosomes | 40 (4x or 8x, x = 10 or 5). - Canada, Greenland, Norway (N). - Several reports, numerous counts. |
| Geography | Cordilleran & amphi-Atlantic (W): ALA CAN GRL. |
| Distribution | N = F AN = r C = R GW = s D = F E = F CC = r HL = r AW = r GE = s [ key ] |
| Parent taxon | Draba L. |
| PAF ID | 672142 |