Vegetation Science Group

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

Vegetation of the Czech Republic

Alliance XDD
Geo urbani-Alliarion petiolatae Lohmeyer et Oberdorfer in Görs et Müller 1969

The alliance Geo-Alliarion includes thermophilous and nutrient-demanding vegetation types dominated by annual to short-lived perennial herbs. It occurs both in semi-natural and anthropogenic, partially shaded habitats, e.g. in fringes of forests and scrub, canopy openings of urban forests, parks, cemeteries, unmanaged gardens, disturbed stream banks, rubble of old buildings and along walls and fences. In the Czech Republic this vegetation type occurs mainly in colline areas.

Nomen mutatum propositum

Orig. (Görs & Müller 1969): Geo-Alliarion (Oberd. 1957) Lohm. et Oberd. 1967 (Geum urbanum. Alliaria officinalis = A. petiolata)

Syn.: Alliarion Oberdorfer 1957 (fantom), Alliarion Hejný in Holub et al. 1967 (§ 2b, nomen nudum), Galio-Alliarion (Oberdorfer 1957) Lohmeyer et Oberdorfer in Oberdorfer et al. 1967 (§ 2b, nomen nudum)

Diagnostic species: Alliaria petiolata, Chaerophyllum temulum, Chelidonium majus. Geranium robertianum. Geum urbanum. Impatiens parviflora. Lamium album. Torilis japonica. Urtica dioica. Viola odorata

Constant species: Alliaria petiolata. Chaerophyllum temulum. Chelidonium majus. Galium aparine. Geranium robertianum. Geum urbanum. Taraxacum sect. Ruderalia. Urtica dioica

Source: Láníková D. (2009): XDD Geo urbani-Alliarion petiolatae Lohmeyer et Oberdorfer in Görs et Müller 1969. 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, pp. 334-335.