| Galium boreale subspecies taxon physocarpum (Ledeb.) | |
| Publ. & Syn. | Galium physocarpum Ledeb., Fl. Ross. 2, 1: 410 (1844). Described from southeastern European Russia. |
| Chromosomes | ca. 64 66 (6x). - Russia, Far East (N). - At least four reports, two from the Russian Far East for G. boreale. Moore (1982) stated that a hexaploid chromosome number (2n = 66), reported for G. rubioides s. lat. by Ehrendorfer (1976), is an error. |
| Geography | European (E) - Asian (N/C): RUS SIB. |
| Distribution | N = F E = S YG = s UN = r Tm = r KP = s [ key ] |
| Parent taxon | Galium boreale L. |
| PAF ID | 750102b |