Vegetation Science Group

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

Vegetation of the Czech Republic

Association XCB04
Dauco carotae-Picridetum hieracioidis Görs ex Seybold et Müller 1972

Dauco carotae-Picridetum hieracioidis

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This association is dominated by Picris hieracioides and contains various biennial and perennial species. Successionally younger stands may contain several annual species, while older stands are richer in perennial grasses. It occurs on warm sites, especially in abandoned fields, where it may develop extensive stands, but it is also found in quarries, military training grounds, along roads and on dry slopes. Its distribution within the Czech Republic includes warm lowland and colline areas.

Orig. (Seybold & Müller 1972): Dauco-Picridetum hieracoides Görs 66

Syn.: Daucus carota-Picris hieracioides Gesellschaft Görs 1966 (§ 3c)

Diagnostic species: Carduus acanthoides. Cichorium intybus. Daucus carota. Erigeron acris agg., Melilotus officinalis. Pastinaca sativa, Picris hieracioides

Constant species: Achillea millefolium agg. (predominantly A. collina), Arrhenatherum elatius. Artemisia vulgaris. Carduus acanthoides. Cichorium intybus. Cirsium arvense. Dactylis glomerata, Daucus carota, Echium vulgare. Elytrigia repens. Medicago lupulina. Pastinaca sativa, Picris hieracioides, Plantago lanceolata. Poa pratensis s. l., Taraxacum sect. Ruderalia. Tripleurospermum inodorum

Dominant species: Daucus carota, Picris hieracioides, Poa pratensis s. l.

Formal definition: Picris hieracioides cover > 5 % NOT Group Brachypodium pinnatum NOT Brachypodium pinnatum cover > 25 % NOT Bromus erectus cover > 25 % NOT Festuca valesiaca cover > 25 % NOT Tussilago farfara cover > 25 %

Source: Láníková D. (2009): XCB04 Dauco carotae-Picridetum hieracioidis Görs ex Seybold et Müller 1972. 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. 236-238.