Vegetation Science Group

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

Vegetation of the Czech Republic

Association XCA01
Carduo acanthoidis-Onopordetum acanthii Soó ex Jarolímek et al. 1997

Carduo acanthoidis-Onopordetum acanthii

Photo on botanickafotogalerie.cz

This association includes stands dominated by the tall, spiny thistle species Onopordum acanthium and Carduus acanthoides. It occurs in sunny anthropogenic habitats on dry soils, mainly in villages and their surroundings, e.g. in waste places, along roads and at the edges of agricultural fields. It is an ancient community with a high proportion of archaeophytes. It occurs in warm lowland and colline areas of the Czech Republic, but has been in decline due to the modernization of villages.

Orig. (Jarolímek et al. 1997): Carduo acanthoidis-Onopordetum acanthii Soó ex Jarolímek et al.

Syn.: Onopordetum acanthii Libbert 1932 (§ 36, nomen ambiguum; non Onopordetum acanthii Br.-Bl. in Br.-Bl. et al. 1936), Carduo-Onopordetum Soó 1945 (§ 2b, nomen nudum)

Diagnostic species: Arctium lappa. Carduus acanthoides. Melilotus officinalis, Onopordum acanthium, Reseda luteola. Sisymbrium loeselii. S. orientale subsp. orientale. Verbascum phlomoides

Constant species: Artemisia vulgaris. Carduus acanthoides. Convolvulus arvensis. Elytrigia repens. Lactuca serriola, Onopordum acanthium, Tripleurospermum inodorum

Dominant species: Carduus acanthoides, Onopordum acanthium

Formal definition: Onopordum acanthium cover > 25 % OR (Onopordum acanthium cover > 5 % AND Group Onopordum acanthium) NOT Atriplex sagittata cover > 25 %

Source: Láníková D. (2009): XCA01 Carduo acanthoidis-Onopordetum acanthii Soó ex Jarolímek et al. 1997. 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. 211-214.