THE PLANT COMMUNITIES WITH PHRAGMITES AUSTRALIS FROM “THE HAYFIELDS OF VALEA LUI DAVID” NATURAL RESERVATION (IASI COUNTY)

The association that comprises the arid reed communities was described based on an insufficient number of relevés. The plant communities with Phragmites australis from the arid and saline slopes of the natural reserve are significantly different from the typical reed beds that cover water banks. Such communities are phytosociologicaly classified in the Association Xero-Phragmitetum. These communities arise on the wide tolerance of reed to substrata water conditions.