ONTOGENETIC FEATURES AND COENOPOPULATION ORGANIZATION OF THE RARE ENDEMIC SPECIES FUMARIOLA TURKESTANICA (PAPAVERACEAE) OF THE ALAY RANGE (UZBEKISTAN)
Abstract
The ontogenetic development and ontogenetic structure of two coenopopulations of Fumariola turkestanica, a rare endemic species of the Alay Range, were investigated. Field studies were carried out under natural conditions in the Shahimardan River basin of the Fergana Valley, Uzbekistan, during 2020–2025. The results revealed that F. turkestanica is a summer–winter green biennial monocarpic plant. During the first year of development, individuals complete the pregenerative stage, forming a single rosette shoot. In the second year, the shoot continues monopodial growth and enters the generative phase, producing open racemes consisting of 5–8 flowers that are arranged into a highly branched cup-shaped panicle. Two ontobiomorphs were identified in the species: a compact form occurring under arid environmental conditions and a prostrate form developing in more humid habitats. Both studied coenopopulations were found to be complete in ontogenetic composition. Population density varied among habitats, ranging from 0.05 to 0.5 individuals per square meter.
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