| Poa L. | |
| Publ. & Syn. | Prob., Novosti Sist. Vyssh. Rast. 11: 52 (1974). - Poa subfastigiata Trin. in Ledeb., Fl. Altaic. 1: 96 (1829). Holotype (LE): Siberia: the Transbaikal area, "ad Udam", Herb. Pallas. |
| Notes | Relationships among the different parts of this large genus are now becoming more clear due to recent phylogenetic studies based on cpDNA and ITS sequences (Gillespie and Soreng 2005; Gillespie et al. 2008). Poa has been much discussed among the PAF collaborators, mainly Aiken, Elven, Yurtsev, and Tzvelev, in some aspects also Gillespie and Soreng. The three main points have been: (1) Treatment as series of species or as races in the large and mainly agamospermous (and partly viviparous) complexes of P. arctica s. lat. and P. pratensis s. lat. and their relatives. (2) The relevance of several Russian species in groups where non-Russian authors recognize only one or a few polymorphic species, that is, in the relationships of the at least partly agamospermous P. glauca, P. nemoralis, and P. palustris. (3) Acceptance or non-acceptance of assumed hybrid origins of some plants. We have the opportunity, for plants present in North America, to compare the opinions of Tzvelev (several treatments) with those of Soreng et al. (2003) and Soreng (2007). The evaluation has been hampered by lack of cross-comparison of Russian and non-Russian material and by some important publications (especially Probatova's) only being available in Russian. The recent phylogenetic works only rarely throw any light on these questions mainly connected to assumed recently evolved differences and taxa not reflected in more conservative DNA sequences. |
| Chromosomes | 42 (6x). - Far East (N). - At least four reports. |
| Geography | Asian (C-NE): RFE*. |
| Parent taxon | Poaceae |
| Child taxa |
Poa abbreviata R. Br. Poa almasovii Golub Poa alpina L. Poa ammophila A.E. Porsild Poa annua L. Poa arctica R. Br. Poa arctostepporum Jurtz. & Prob. Poa beringiana Prob. Poa botryoides (Trin. ex Griseb.) Kom. ex Roshev. Poa filiculmis Roshev. Poa glauca Vahl Poa hartzii Gand. Poa laxa Haenke Poa leptocoma Trin. Poa macrocalyx Trautv. & C.A. Mey. Poa magadanensis Prob. Poa malacantha Kom. Poa nemoralis L. Poa ochotensis Trin. Poa palustris L. Poa paucispicula Scribn. & Merr. Poa pekulnejensis Jurtz. & Tzvelev Poa platyantha Kom. Poa porsildii Gjærev. Poa pratensis L. Poa pseudoabbreviata Roshev. Poa raduliformis Prob. Poa sibirica Roshev. Poa sublanata Reverd. Poa supina Schrad. Poa tanfiljewii Roshev. Poa trivialis L. Poa urssulensis Trin. Poa Poajemtlandica (Almq.) K. Richt. |
| PAF ID | 3426 |