Abstract
Individuals ofDracocephalum nutansL. have been studied at different altitude levels from 460 to 2437 m above the level seas. The influence of the height gradient on morphological characters has been shown: the number of generative and vegetative shoots, the height of the generative shoot, the length and width of the leaf blade, length of its petiole, and inflorescence length. It was found that the height gradient has the greatest influence on the height of the generative shoot and the length of the inflorescence. When individuals grow higher along the altitude gradient, the height of the generative shoot and the length of the inflorescence decrease. The fluctuation of the average values of the traits ofD. nutansin a wide range was established. The intrapopulation analysis ofD. nutansindividuals does not depend on the height factor.
Highlights
The study of the structure and development of plants in a variety of ecological conditions makes it possible to identify variants of the morphological structure and features of their development
The analysis of morphological traits of plants with a wide range allows us to assess the patterns of their changes depending on the phytocenotic situation, which is the basis for solving various issues in the ecology and systematics of plants
Due to its polymorphism and a large range of ecological conditions, this species can act as a model object for studying functional traits in ecology
Summary
The study of the structure and development of plants in a variety of ecological conditions makes it possible to identify variants of the morphological structure and features of their development. It was found that the factor of the altitude gradient, with varying degrees of influence, affects all the studied morphological characters, except for the length of the leaf blade.
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