Vegetation Science Group

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

Vegetation of the Czech Republic

Alliance XBB
Veronico-Euphorbion Sissingh ex Passarge 1964

This is annual weed vegetation developing in root-crop cultures on base-rich loamy or clayey soils in warm areas. Depending on the type of planted crop and agricultural management, it may temporally alternate with Caucalidion vegetation. Compared with the alliance Caucalidion this vegetation type contains more native species and neophytes but less archaeophytes.

Orig. (Passarge 1964): Veronico-Euphorbion Siss. 42

Syn.: Veronico-Euphorbion Sissingh 1942 ms. (§ 1), Fumario-Euphorbion Müller ex Görs 1966

Diagnostic species: Amaranthus powellii, A. retroflexus, Anagallis arvensis. Capsella bursa-pastoris. Chenopodium album agg., C. hybridum. Echinochloa crus-galli, Euphorbia helioscopia, Fallopia convolvulus. Galinsoga parviflora. Lamium purpureum. Sinapis arvensis. Solanum nigrum s. l., Sonchus arvensis. S. asper. S. oleraceus. Stellaria media agg. (predominantly S. media s. str.), Thlaspi arvense. Tripleurospermum inodorum. Veronica persica

Constant species: Amaranthus retroflexus. Capsella bursa-pastoris. Chenopodium album agg., Cirsium arvense. Convolvulus arvensis. Elytrigia repens. Euphorbia helioscopia. Fallopia convolvulus. Galium aparine. Polygonum aviculare agg. (predominantly P. aviculare s. str.), Sonchus arvensis. S. asper. Stellaria media agg. (predominantly S. media s. str.), Taraxacum sect. Ruderalia. Tripleurospermum inodorum. Veronica persica. Viola arvensis

Source: Lososová Z. (2009): XBB Veronico-Euphorbion Sissingh ex Passarge 1964. In: Chytrý M. (ed.), Vegetace České republiky. 2. Ruderální, plevelová, skalní a su»ová vegetace [Vegetation of the Czech Republic 2. Ruderal, weed, rock and scree vegetation]. Academia, Praha, p. 102.