| Caltha palustris subsp. palustris | |
| Publ. & Syn. | Caltha minor Mill., Gard. Dict., ed. 8: Caltha no. 2 (1768). Described from "many parts of England". - Caltha palustris subsp. minor (Mill.) Vorosch. in A.K. Skvortsov, Florist. Issl. v Razn. Raionakh SSSR: 167 (1985). |
| Notes | Subspecies palustris is broadly amphi-Atlantic. It transgresses the boundary of the Arctic in several places but does not reach very far north. |
| Chromosomes | (1) 28 (4x, x = 7). - Europe (N), Far East (N). - At least three reports for "palustris" and "sibirica". Reports of this number were 'corrected' by Löve and Löve (1975a) to 2n = 32. (2) 32 (4x, x = 8). - Europe, Russia, Siberia, Far East, Alaska, Canada. - Numerous reports for "arctica", "palustris", and "sibirica". (3) 48 (6x, x = 8). - Europe (N). - Löve and Löve (1948, for C. radicans). (4) 52 54 56 (8x, x = 7). - Europe, Russia, Siberia, Far East, Alaska, Canada. - Numerous reports for "arctica", "palustris", "radicans", and "sibirica". (5) 60. - Siberia, Canada. - Several reports for "arctica" and "palustris". (6) 64 (8x, x = 8). - Siberia, Far East. - At least two reports for "palustris" and "sibirica". (7) 70 72 80 (9-10x, x = 7, 8). - Siberia, Far East (N), Alaska. - At least four reports for "minor", "palustris", and "sibirica". There are several reports of a wide range of numbers within restricted areas, e.g.: Löve and Löve (1956b, 2n = 48-80 for C. minor in Iceland); Johnson and Packer (1968, 2n = 56-70 for C. palustris s. lat. in northwestern Alaska); Chrtková and Jarolímová (1999, 2n = 32 34 34-36 44 47 56 56+6B 57 56-59 59 61 64 for C. palustris in Europe). |
| Geography | North American (NE) - amphi-Atlantic - European - Asian (W): ICE NOR RUS SIB CAN. |
| Distribution | N = F D = R Ic = r E = F YG = s HL = r FN = r UN = s YK = r Kh = r Tm = r KP = r [ key ] |
| Parent taxon | Caltha palustris L. |
| PAF ID | 360101a |