Vegetation Science Group

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

Vegetation of the Czech Republic

Class XB
Stellarietea mediae Tüxen et al. ex von Rochow 1951
Annual vegetation of arable land and ruderal habitats

XBA Caucalidion

XBB Veronico-Euphorbion

XBC Scleranthion annui

XBD Arnoseridion minimae

XBE Oxalidion fontanae

XBF Spergulo arvensis-Erodion cicutariae

XBG Atriplicion

XBH Sisymbrion officinalis

XBI Malvion neglectae

XBJ Salsolion ruthenicae

XBK Eragrostion cilianensi-minoris

The class Stellarietea mediae includes vegetation of frequently or recently disturbed sites with nutrient-rich soils and a preponderance of annual herbs. It occurs either as weed vegetation on arable land or as ruderal vegetation in human settlements and other disturbed places. It is mainly composed of annual plants. Stellarietea mediae vegetation expanded in central Europe with the advent of Neolithic agriculture. Many species typical of this vegetation are archaeophytes which were introduced mainly from the Near East and Mediterranean during prehistoric period. Species composition of this vegetation was changing with changes in agrotechniques and management of human-made habitats. In modern times several neophytes spread in this vegetation. Today this class encompasses large diversity of plant communities ranging from species-poor monodominant stands to species-rich weed communities in less intensively managed arable fields or gardens.

Orig. (von Rochow 1951): Stellarietea mediae Tx., Lohm., Prsg. 1950

Syn.: Ruderali-Secalietea Br.-Bl. in Br.-Bl. et al. 1936 (§ 3f), Stellarietea mediae Tüxen et al. 1950 (§ 2b, nomen nudum), Chenopodietea Br.-Bl. in Br.-Bl. et al. 1952, Secalietea Br.-Bl. in Br.-Bl. et al. 1952

Diagnostic species: Amaranthus retroflexus. Anagallis arvensis. Apera spica-venti. Atriplex patula. Avena fatua. Capsella bursa-pastoris. Centaurea cyanus. Chenopodium album agg., C. polyspermum. Cirsium arvense. Convolvulus arvensis. Elytrigia repens. Euphorbia exigua. E. helioscopia. Fallopia convolvulus. Geranium pusillum. Lamium amplexicaule. L. purpureum. Lapsana communis. Myosotis arvensis. Papaver rhoeas. Persicaria maculosa. Polygonum aviculare agg. (predominantly P. aviculare s. str.), Raphanus raphanistrum. Scleranthus annuus. Sherardia arvensis. Silene noctiflora. Sinapis arvensis. Sonchus arvensis. S. asper. Spergula arvensis. Stellaria media agg. (predominantly S. media s. str.), Thlaspi arvense. Tripleurospermum inodorum. Veronica persica. V. polita. Vicia angustifolia. Viola arvensis

Constant species: Capsella bursa-pastoris. Chenopodium album agg., Cirsium arvense. Elytrigia repens. Fallopia convolvulus. Polygonum aviculare agg. (predominantly P. aviculare s. str.), Stellaria media agg. (predominantly S. media s. str.), Taraxacum sect. Ruderalia. Tripleurospermum inodorum. Viola arvensis

Source: Lososová Z. (2009): XB Stellarietea mediae Tüxen et al. ex von Rochow 1951. 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. 74-80.