Stability of some species of family Orchidaceaeto anthropogenous influences in the Southern Ural

We defined with concept application hemerobie degree of stability of 19 species of family Orchidaceae to anthropogenous influences. This method of an estimation of anthropotolerance offered by us has clear divided the investigated species into 2 groups: vulnerable species and rather steable species. As a whole vulnerable species concern to forest phytocoenosis of group, under the life form are rhisome species, on types of strategy concern to stress-tolerant. Rather steable species are connected with meadows and bogs, under the life form almost all concern kinds with tuberoids, in life strategy properties ruderals prevail.