| The Hieracium laevigatum aggregate | |
| Publ. & Syn. | ***Hieracium aelocephalum Omang*** - ICE? |
| Notes | Böcher et al. (1978) indicated that the Greenland microspecies assigned here could belong to two groups - the Hieracium inuloides group (in sect. Foliosa) and the H. laevigatum group (= sect. Tridentata) - but they did not divide species on these groups. According to Scoggan (1979), a species named H. canadense Michx., Fl. Bor.-Amer. 2: 86 (1803), reaches the Arctic on southeastern Hudson Bay in Quebec. Strother (2006b) included both H. canadense and H. scabriusculum in his widely circumscribed H. umbellatum, probably corresponding to sect. Tridentata. The name H. canadense might have priority for the Canadian species. The H. laevigatum aggregate is a very large group where there probably are many more microspecies in the Arctic in Norway than those listed below. |
| Chromosomes | (1) 18 (2x). - Europe (Finland). - Jalas and Pellinen (1985). (2) 27 (3x). - Europe, Russia, Siberia, Canada, U.S.A., Greenland. - Several reports, the Greenland one for H. acranthophorum, those from Canada and U.S.A. for H. scabriusculum or H. canadense. |
| Geography | Amphi-Atlantic - European - Asian (W): NOR RUS SIB CAN GRL. |
| Distribution | N = F GW = s D = R E = S YG = r HL = r FN = r GE = r Tm = r KP = r [ key ] |
| Parent taxon | Hieracium L. |
| PAF ID | 864626 |