| Eutrema edwardsii R. Br. | |
| Publ. & Syn. | R. Br., Chlor. Melvill.: 9 (1823). Described from Melville Island [the Winter Harbour area, 1819-1820], probably the Northwest Territories (Canada). |
| Notes | The wide morphological variation in Eutrema edwardsii, and also the ploidy variation, suggests some interesting structure. This species could be a rewarding object for circumpolar molecular and morphological study. |
| Chromosomes | (1) 28 (4x). - Siberia (N, E), Far East (N), Alaska, Canada, Greenland. - Numerous reports. (2) 42 (6x). - Russia (N), Siberia (N), Canada. - Several reports. (3) 56 (8x). - Alaska. - Knaben (1968). Not included: A report of 2n = 18 from the North Slope of the Brooks Range, Alaska (Rollins 1966). In need of confirmation as the base chromosome number seems to be x = 7. Internal note: Check for possible misprint or mis-citation: Contr. Gray Herb. 197: 43-65. |
| Geography | Circumpolar-alpine: NOR RUS SIB RFE ALA CAN GRL. |
| Distribution | N = S A = S AN = f B = F AO = f C = F GW = r D = F E = F CC = f WI = f YG = s HL = f FN = r EP = f CE = f CS = s UN = f YK = f AW = f GE = s Kh = f SF = s CW = f Tm = f KP = s [ key ] |
| Parent taxon | Eutrema R. Br. |
| PAF ID | 670701 |