Morpho-physiological, biochemical, yield and composition of essential oils of woundwort collected from Marand, Iran

Woundwort (Stachys Lavandofolia Vahl.) is a lamiaceous plant growing frequently in Iran. Woundwortsamples were collected from three habitats including Erelan, Golajar and Nojehdeh Sheikhlar located in Marand, Iran in late spring and their geographical characteristics were recorded. Some morphological and physiological traits such as stem length, plant fresh and dry weight, chlorophyll a,b and total chlorophull content, and biochemical characteristics including Na, K, Ca, Mg and P content and also yield and essential oils yield and composition were measured. Obtained data were analyzed based on completely randomized design. The amount of Mg in Goljar, stem length in Nojedeh Sheikhlar, Na and fresh weight and chlorophyll a and b content in Erlan were in maximum value. Anti-oxidan activity was the same in all habitats. Wounworts collected from Erlanhad more Na content comparing other habitats which can be related to higher germacren D in plant tissues collected from this region.