Vegetation Science Group

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

Vegetation of the Czech Republic

Association XDC05
Urtico dioicae-Parietarietum officinalis Klotz 1985

Urtico dioicae-Parietarietum officinalis

Photo on botanickafotogalerie.cz

These are tall herbaceous stands dominated by Parietaria officinalis and co-dominated by Urtica dioica. They occur on continuously wet or summer-dry screes or soils with high stone content on shaded sites. Typical habitats include fringes of ravine forests, unmanaged places in parks and gardens, and the bases of rock outcrops, old buildings and walls. In the Czech Republic Parietaria officinalis is considered to be a neophyte, although it is probably native in Slovakia. There are few relevés of Urtico-Parietarietum from the Czech Republic, but this association can be occasionally found particularly in human settlements and their surroundings.

Orig. (Klotz 1985): Urtico-Parietarietum officinalis (Segal 67) ass. nov. (Urtica dioica)

Syn.: Urtico-Parietarietum officinalis Mennema et Segal 1967 (fantom), Chelidonio-Parietarietum officinalis Brandes 1985

Diagnostic species: Arctium lappa. Chaerophyllum temulum. Galium odoratum. Impatiens parviflora, Parietaria officinalis, Scrophularia vernalis

Constant species: Arctium lappa. Chaerophyllum temulum. Galeopsis pubescens. Galium odoratum. Impatiens parviflora, Parietaria officinalis, Urtica dioica; Brachythecium velutinum. Hypnum cupressiforme s. l. (predominantly H. cupressiforme s. str.)

Dominant species: Ficaria verna subsp. bulbifera. Galeobdolon luteum s. l., Parietaria officinalis, Urtica dioica

Formal definition: Parietaria officinalis cover > 5 %

Source: Sádlo J. (2009): XDC05 Urtico dioicae-Parietarietum officinalis Klotz 1985. 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. 332-334.