Impact of Habitat Variability on Phenotypic Attributes of Hypericum perforatum L. along an Elevational Gradient in Kashmir Himalaya

A number of environmental factors such as mean temperature, precipitation, soil characteristics etc. changes with elevational gradient and thereby, affect the morphological pattern of a plant species. Phenotypic attributes of a particular species varies along different altitudes in order to adapt and also to overcome these changeable and stressful conditions. The present study was undertaken to assess the distribution pattern and impact of habitat variability along an elevational gradient on morphology of an important medicinal plant Hypericum perforatum growing in Kashmir Himalaya. Hypericum perforatum, member of family Hypericaceae, is a perennial herb and distributed in North Western Himalaya. The species exhibited distinct variability and a peculiar trend in morphological traits in response to different environmental conditions along an elevational gradient.