Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Alliance TFB
Thero-Airion Tüxen ex Oberdorfer 1957

The alliance Thero-Airion comprises open low-growing therophytic vegetation of recently disturbed sites on sand or gravel, usually dominated by annual grasses of the genera Aira and Vulpia. It is most common in suboceanic areas of north-western Europe, but becomes increasingly rare towards the south-eastern regions.

Orig. (Oberdorfer 1957): Thero-Airion Tx. 51 (Aira caryophyllea, A. praecox)

Syn.: Thero-Airion Tüxen 1951 (§ 2b, nomen nudum), Vicio lathyroidis-Potentillion argenteae Brzeg in Brzeg et Wojterska 1996 p. p.

Diagnostic species: Aira praecox, Cerastium semidecandrum, Filago minima, Potentilla argentea, Spergula morisonii, Spergularia rubra, Veronica verna, Vulpia myuros

Constant species: Agrostis capillaris, Aira praecox, Potentilla argentea, Vulpia myuros; Ceratodon purpureus

Source: Sádlo J. (2007): TFB Thero-Airion Tüxen ex Oberdorfer 1957. In: Chytrý M. (ed.), Vegetace České republiky. 1. Travinná a keříčková vegetace [Vegetation of the Czech Republic. 1. Grassland and Heathland Vegetation]. Academia, Praha, pp. 337-338.