Vegetation Science Group

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

Vegetation of the Czech Republic

Association KBE02
Poo nemoralis-Robinietum pseudoacaciae Němec ex Vítková et Kolbek in Kolbek et al. 2003

Poo nemoralis-Robinietum pseudoacaciae

Photo on botanickafotogalerie.cz

Poo-Robinietum is an association of open and mesic Robinia woodlands with the herb layer dominated by grasses, particularly Poa nemoralis. Nutrient-demanding dicot herbs are less common than in the Chelidonio majoris-Robinietum pseudoacaciae. It is usually found on slowly weathering siliceous bedrocks on upper and middle slopes in deep river valleys of the Bohemian Massif. Localities in the Czech Republic are concentrated in the river valleys of central and southern Bohemia and south-western Moravia.

Orig. (Vítková et al. in Kolbek et al. 2003a: 273–277): Poo nemoralis-Robinietum Němec ex Vítková & Kolbek ass. nova Syn.: Poo nemoralis-Robinietum Němec 1981 (§ 3o)

Diagnostic species: Robinia pseudoacacia, Sambucus nigra; Fallopia dumetorum, Poa nemoralis

Constant species: Robinia pseudoacacia, Rubus fruticosus agg., Sambucus nigra; Chelidonium majus, Galeopsis tetrahit agg., Galium aparine, Impatiens parviflora, Poa nemoralis; Hypnum cupressiforme s. l.

Dominant species: Robinia pseudoacacia, Sambucus nigra; Avenella flexuosa, Poa nemoralis

Formal definition: Robinia pseudoacacia cover > 25.% AND (Avenella flexuosa cover > 25 % OR Brachypodium pinnatum cover > 50 % OR Poa nemoralis cover > 25 %) NOT Group Acinos arvensis NOT Group Alliaria petiolata NOT Group Festuca pallens NOT Group Urtica dioica NOT Arrhenatherum elatius cover > 25 % NOT Calamagrostis epigejos cover > 5 % NOT Holcus lanatus cover > 5 % NOT Melica transsilvanica cover > 5 % NOT Pinus sylvestris cover > 25 % NOT Quercus petraea agg. cover > 25 % NOT Urtica dioica cover > 5.%

Source: Vítková M. (2013): KBE02 Poo nemoralis-Robinietum pseudoacaciae Němec ex Vítková et Kolbek in Kolbek et al. 2003. In: Chytrý M. (ed.), Vegetace České republiky. 4. Lesní a křovinná vegetace [Vegetation of the Czech Republic 4. Forest and shrub vegetation]. Academia, Praha, pp. 141-144.