| Draba nivalis Lilj. | |
| Publ. & Syn. | Draba caesia Adams, Mém. Soc. Imp. Naturalistes Moscou 5: 108 (1817). Described from the Lena River estuary in Yakutia (Siberia). Syntypes in MW! and G-DC! |
| Notes | Petrovsky, Grundt, and Elven: Draba caesia Adams 1817 has frequently been applied as the priority name for the species considered as D. palanderiana (e.g., Hultén 1968a; Tolmachev 1975b). The syntypes of D. caesia are indistinguishable from D. nivalis and the name is a synonym for D. nivalis. Grundt and Elven: Draba nivalis is a very widespread arctic-alpine species, comparatively uniform in molecular markers and also in morphology throughout its large range, even if leaf pubescence can vary from totally covering (the most common situation) to only stripes along the margins, or lacking altogether. The subglabrous and glabrous plants occur as populations but scattered here and there within the range of the densely hairy ones. We consider them taxonomically insignificant. Hybrids with D. fladnizensis and D. rupestris are frequent but invariably sterile. |
| Chromosomes | 16 (2x). - Europe (N), Siberia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports. Diploid in FCM, Grundt et al. (2005b; Norway, Svalbard, Siberia, Alaska, Canada, Greenland). |
| Geography | Circumpolar-alpine: ICE NOR RUS SIB RFE ALA CAN GRL. |
| Distribution | N = F A = S AN = s B = F C = F GW = f D = F Ic = s E = F CC = f YG = f HL = f FN = r EP = s CE = f CS = r UN = f YK = r AW = s GE = f Kh = r SF = f CW = f KP = s [ key ] |
| Parent taxon | Draba L. |
| PAF ID | 672120 |