| Hierochloë R. Br. | |
| Publ. & Syn. | Excluded: Hierochloë hirta subsp. praetermissa. |
| Notes | Schouten and Veldkamp (1985) included Hierochloë in Anthoxanthum on morphological evidence. The two genera are rather different morphologically in Europe, northern Asia, and North America, but Schouten and Veldkamp found southeastern Asian representatives to be much more similar. Soreng et al. (2003) and Allred and Barkworth (2007) accepted the merger for America. Nevertheless, we prefer to accept Hierochloë as a genus apart from Anthoxanthum. Note also the difference in base chromosome number, at least for the northern representatives: x = 5 in Anthoxanthum s. str., x = 7 in Hierochloë. The most thorough morphological and cytological treatment of northern Hierochloë to date is Weimarck (1970a, 1970b, 1971, 1973, 1975, 1976, 1980, 1986). The taxa that reach the Arctic belong to three rather different groups: the H. alpina aggregate, the H. odorata aggregate, and H. pauciflora. |
| Chromosomes | (1) 10 (2x). - Europe (Balkan). - Felber (1987, seven localities). (2) 20 (4x). - Europe, Russia, Far East, Canada. - Numerous reports, hundreds of counts. |
| Geography | European: NOR* GRL*. |
| Parent taxon | Poaceae |
| Child taxa |
Hierochloë alpina (Sw.) Roem. & Schult. Hierochloë glabra Trin. Hierochloë odorata (L.) Wahlenb. Hierochloë orthantha T.J. Sørensen Hierochloë pauciflora R. Br. Hierochloë wrangelica Jurtz. & Prob. The Hierochloë alpina aggregate The Hierochloë odorata aggregate |
| PAF ID | 3409 |