| Veratrum oxysepalum Turcz. | |
| Publ. & Syn. | Turcz., Bull. Soc. Imp. Naturalistes Moscou 13: 79 (1840). Described from Kamtchatka (the Russian Far East). - Veratrum album var. oxysepalum (Turcz.) Miyabe & Kudô in Miyabe & T. Miyake, Fl. Saghalin: 484 (1915). - Veratrum album subsp. oxysepalum (Turcz.) Hultén, Fl. Kamtchatka 1: 233 (1927). |
| Notes | Veratrum oxysepalum is a morphologically distinct high polyploid species of northeastern Asia and western Alaska. It may be an allopolyploid with V. album as one parent and some eastern Asian species as the other. The relationship to the nearly sympatric North American V. viride is probably distant. |
| Chromosomes | (1) 64 (8x). - Far East (Koryak). - Sokolovskaya (1968). (2) 70-72 (ca. 9x). - Sokolovskaya and Strelkova (1960). (3) 80 (10x). - Far East (N). - Several reports, numerous counts. (4) 96 (12x). - Far East (West Chukotka). - Zhukova and Petrovsky (1976). Not included: A report of 2n = 32 (4x) from Putorana in northern Siberia (Krogulevich 1976a). This count was made on plants from within the range of the tetraploid V. album rather than V. oxysepalum and may be based on a misidentification. There are two other excluded reports of tetraploids, both published in papers dealing with technical cytological questions wherein the identification of the plants is uncertain. |
| Geography | Asian (NE) - amphi-Beringian (W): SIB RFE ALA. |
| Distribution | N = S AN = b E = S CE = r YK = r AW = r Kh = f CW = s [ key ] |
| Parent taxon | Veratrum L. |
| PAF ID | 250202 |