| Ranunculus sulphureus Sol. | |
| Publ. & Syn. | Ranunculus altaicus auct., non Laxm. (1774). |
| Notes | In addition to the mainly arctic var. sulphureus there is a non-arctic var. intercedens Hultén in Kamtchatka and the Aleutian Islands. The name Ranunculus altaicus Laxm. has sometimes been applied to arctic plants. Ranunculus altaicus is a related but diploid (2n = 16, Krasnikov and Schaulo 1986) southern Siberian species differing also in morphological characters. |
| Chromosomes | (1) 64 (8x). - Russia (N), Siberia (S). - At least four reports. (2) ca. 76. - Far East (Kamtchatka). - Sokolovskaya (1963). (3) 80 (10x). - Europe (N), Far East (N), Canada. - At least four reports. (4) ca. 84. - Far East (N), Canada. - Mosquin and Hayley (1966); Zhukova et al. (1973). (5) 96 96-ca. 98 (12x). - Europe (N), Russia (N), Siberia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports. Löve and Löve (1975a) omitted reports of all other numbers than 2n = 96 for this species. Not included: A report of 2n = ca. 56 from eastern Greenland (Böcher 1938a), see Jørgensen et al. (1958: 63). Possibly confused with R. nivalis. Reports of 2n = 42 from Melville and Devon islands in arctic Canada (Mosquin and Hayley 1966; Scott 1974a) should be checked against vouchers. |
| Geography | Circumpolar-alpine: NOR RUS SIB RFE ALA CAN GRL. |
| Distribution | N = S A = F AN = f B = F AO = f C = F GW = s D = F E = F CC = f WI = f YG = s HL = f FN = s EP = f CE = f CS = r UN = f YK = f AW = s GE = f Kh = f SF = f CW = f Tm = f [ key ] |
| Parent taxon | Ranunculus L. |
| PAF ID | 361215 |