Vegetation Science Group

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

Vegetation of the Czech Republic

Association TAA02
Heleochloëtum schoenoidis Ţopa 1939

Heleochloëtum schoenoidis

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These low-growing, open annual grasslands, dominated by Heleochloa schoenoides, are typical of exposed lake bottoms with saline soils. The soils contain a large proportion of clay. They are wet in spring but dry out in summer. Occasionally stands of Heleochloa schoenoides occur in vernally flooded depressions on arable fields. Currently this vegetation is only found at two sites in southern Moravia, although in the past it was probably more common in that part of the country.

Orig. (Ţopa 1939): Asociaţia cu Crypsis schoenoides E. Ţopa 1938; As. Heleochloëtum schoenoidis (Soó) E. Ţopa 1938 (Crypsis schoenoides ~ Heleochloa schoenoides)

Diagnostic species: Aster tripolium subsp. pannonicus, Atriplex prostrata subsp. latifolia, A. tatarica, Bolboschoenus maritimus s. l., Chenopodium glaucum, Crypsis aculeata, Heleochloa schoenoides, Juncus gerardii, Lotus tenuis, Puccinellia distans, Spergularia maritima, S. salina, Taraxacum bessarabicum

Constant species: Atriplex prostrata subsp. latifolia, Bolboschoenus maritimus s. l., Heleochloa schoenoides, Polygonum aviculare agg., Puccinellia distans, Spergularia maritima

Dominant species: Heleochloa schoenoides, Spergularia maritima

Formal definition: Heleochloa schoenoides cover > 25 % NOT Group Centaurium pulchellum

Source: Šumberová K. (2007): TAA02 Heleochloëtum schoenoidis Ţopa 1939. 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. 135-138.