Vegetation Science Group

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

Vegetation of the Czech Republic

Association LDA04
Holco mollis-Quercetumroboris Scamoni 1935

Holco mollis-Quercetumroboris

Photo on botanickafotogalerie.cz

This association comprises acidophilous oak forests of wet habitats, dominated by Quercus robur, less frequently by Q. petraea agg., and accompanied by Betula pendula and B. pubescens. The shrub layer contains Frangula alnus in most stands, but it rarely reaches high cover. The herb layer is usually dominated by Molinia arundinacea, less frequently by M. caerulea or Carex brizoides. It contains generalist acidophilous species, but also some species of wet meadows. These forests occur in flatlands or shallow depressions with deep, nutrient-poor soils that tend to be wet from autumn to spring but dry out in summer.

Nomen inversum propositum

Orig. (Scamoni 1935): Quercus robur-Holcus mollis-Assoziation

Syn.: Abieti-Quercetum Mráz 1959 p. p., Stellario holosteae-Quercetumroboris Scamoni 1960, Molinio arundinaceae-Quercetum roboris Neuhäusl et Neuhäuslová 1967, Molinio arundinaceae-Quercetum sensu auct. non Samek 1962 (pseudonym)

Diagnostic species: Betula pubescens, Frangula alnus, Populus tremula, Quercus robur; Convallaria majalis, Hieracium laevigatum, Melampyrum pratense, Molinia caerulea agg.

Constant species: Betula pendula, Frangula alnus, Quercus robur; Avenella flexuosa, Convallaria majalis, Festuca ovina, Lysimachia vulgaris, Melampyrum pratense, Molinia caerulea agg., Poa nemoralis, Potentilla erecta, Vaccinium myrtillus

Dominant species: Frangula alnus, Quercus petraea agg., Q. robur; Calamagrostis arundinacea, Carex brizoides, Molinia caerulea agg.

Formal definition: (Quercus petraea agg. cover > 15 % OR Quercus robur cover > 15 %) AND (Molinia caerulea agg. cover > 25 % OR Group Succisa pratensis) NOT Group Asarum europaeum NOT Group Lathyrus niger NOT Group Lathyrus vernus NOT Group Lysimachia vulgaris NOT Group Serratula tinctoria NOT Group Urtica dioica NOT Vaccinium myrtillus cover > 25 %

Source: Roleček J. (2013): LDA04 Holco mollis-Quercetumroboris Scamoni 1935. 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. 362-365.