The vegetation in this area grows in a continental climate, with warm summers and moderate winters. The annual average temperature is 10.5oC, and the annual average rainfall is 550 mm. Many plants in the area need the period of flooding in order to germinate and to consume the nutrients freshly dissolved in the water. Besides the herbaceous species cultivated on arable lands in the area dam-bank or high terrace-bank, in the spontaneous flora there can frequently be met species like: Calamagrostis epigeios, Agropyron repens, Artemisia vulgaris, Filago arvensis, Falcaria vulgaris, Malva pusilla, Lepidium draba, Festuca valleriaca.
The plants are represented by over 1,000 species and subspecies wooden and herbaceous. The plain meadow consist of associations of Festuca, Poa, Lolium, Agrostis, Trifolium, Euphorbia, Plantago. There are more or less large areas where there can be met species of rare or almost extinct herbaceous plants. Thus there have been found random individuals of  Ornithogalum boucheanum, Ornithogalum pyramidale, Xeranthemum annuum (pink everlasting), Echium italicum (about 100 individuals in the south-western part of the village of Pecica, in the place called „Şanţul Mare”).
A great number of plants are part of „The red list of superior plants in Romania” as vulnerable or rare species: Achillea thracica (yarrow), Stratiotes alloides (water-soldier), Agrostemma githago (corncokle), Cirsium brachycephalum, Lindernia procumbens (prostrate false pimpernel), Najas minor (waternymph), Peucedanum officinale (hog’s fennel), Platanthera bifolia (lesser butterfly-orchid), Rumex aquaticus (Scottish dock), Vicia narbonensis L. ssp. serratifolia (French vetch). Besides this, there are also three species Marsilea quadrifolia, Salvinia natans (floating watermoos), Trapa natans (narrow clover) which are strictly protected according to the Convention from Berna.
The stands of oak (Quercus robur) and narrow-leafed ash (Fraxinus angustifolia) are predominant in the area, together with the coppices of black and white poplar (Populus nigra and Populus alba) and of white willow (Salix alba). They can be mainly found in a small forest in the Cenad area and in a forest of about 6,000 ha which lies along the river Mureş downstream from Arad to the village of Semlac.
The most important habitats of community interest from Mures Floodplain are the forestry and wetlands ones. From the former, the habitat 91F0 - Riparian mixed forests of Quercus robur, Ulmus laevis and Ulmus minor, Fraxinus excelsior or Fraxinus angustifolia, along the great rivers (Ulmenion minoris) is the best represented in terms of covered surface. The species characteristic of the area which form this habitat are common oak (Quercus robur), narrow-leafed ash (Fraxinus angustifolia) and, less frequently, European white elm (Ulmus laevis) and field elm (Ulmus minor). Unfortunately, the most important species –the common oak does not produce fruit abundantly and frequently so as to assure natural regeneration. Among the wetland habitats, 3270- Rivers with muddy banks with Chenopodium rubri p.p. and Bidention p.p. vegetation is the most important.