The corm fits flora in Danube Delta has been concerning many researchers, noting over 300 works referring to different groups of plants: swamp and water plants, ligneous plants, plants that are important for pisciculture, sand plants, etc.
According to these data, within the Delta grow 955 species of spontaneous corm fits, and their number could rise through artificial introduction of other species by human, trough his various interventions, or it could decrease trough the severe alteration of certain biotypes.
Nevertheless the environmental and relief modifications following an unscientific program of economical operation brings the necessity of continuous flora and vegetation study, with an emphasis on the research of speciesâ yearly dynamics. Regarding their multiple ethno botanical utilizations, the studies have been less elaborated both from the fundamental and applied research point of view, on fields of traditional activity.
The vegetables and medicinal herbs are of a special importance for this field, as they have been the object of study since ancient times to the present day. Herbal therapeutics developed these days, successfully proving that medicinal herbs, regardless their origin and systematic position, own their therapeutic actions to one or many chemical materials elaborated by their cells, termed active vegetable elements.
The hereby research represents a section of the study undertaken between 2003-2004, aiming to the identification of species used as vegetables and medicinal herbs among the spontaneous flora in Danube Delta, establishment of biological features for the plants identified on field, establishment of their alimentary and medical importance and the determination of their chemical composition and their content of active elements. | 
