Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Present-day condition of cormophytes diversity on alkali soils in Vărșand (Arad county, W-Romania).

Abstract

The paper contains a list of 180 cormophyte species found on alkali soils near the village of Vărșand (Arad county, W-Romania) during the years 2010-2012. The flora in immediate proximities is also recorded, sometimes ruderal species and weeds being found mixed in halophilous communities. The studied zone, belonging to a Community Importance Site (ROSCI0231 Nădab-Socodor-Vărșand), is an overgrazed meadow. We mainly classify species in the following categories: (a) halophilic and salt-tolerant species (Achillea setacea, Artemisia santonicum subsp. santonicum, Aster tripolium, Bupleurum tenuissimum, Camphorosma annua, Chamomilla recutita, Festuca pseudovina, Hordeum hystrix, Juncus gerardi, Limonium gmelinii, etc.); (b) species from soil-microdepression habitats, with temporary stagnant water (Oenanthe silaifolia, Beckmania eruciformis, Juncus gerardi, Lycopus europaeus, Rumex stenophyllus, Rumex dentatus, Rorippa sylvestris subsp. kerneri); (c) drainage-canals species (Agrostis stolonifera, Carex vulpina, Echinochloa crus-galli, Eleocharis palustris, Juncus inflexus, Lycopus exaltatus and Lycopus europaeus, Lythrum salicaria, Mentha aquatica, Pastinaca sativa, Ranunculus sardous, Polygonum lapathifolium, Scirpus lacustris subsp. lacustris, etc.), and (d) ruderal species and weeds, including invasives like Ambrosia artemisiifolia and Eriochloa villosa. We state the inappropriate conservation condition of this Natura 2000 site-part, the small populations of red-listed species Lotus angustissimus and Trifolium ornithopodioides, due in the main to overgrazing.