On the taxonomic structure of Delphinium elatum aggr. complex (Ranunculaceae) in the urals

摘要

Delphinium elatum aggr. complex in the Urals is represented by two closely related species, D.elatum and D.alpinum. They are distinguished by pubescence and have numerous transitional forms. D.elatum s.str. but not D.alpinum reaches the upper limit of distribution of this complex in highland of North Urals. A local endemic race of this complex was revealed in the highland of South Urals. It is characterized by very dense pubescence of all its organs including ovaries and fruits. This race is described as a new species, D.nurguschense sp. nov.