COMPARATIVE-MORPHOLOGICAL AND CHEMOTAXONOMIC STUDY OF THE ASTRAGALUS SPECIES OF THE SECTION ONOBRYCHIUM (FABACEAE)
O.V. Kotsupiy, E.P. Кhramova, G.I. Vysochina
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
olnevaster@gmail.com
Keywords: morphology, areas, chemotaxonomy, aglycons of fl avonol, Astragalus L
Abstract
Morphology, areas, composition and content of the fl avonoid aglycons have been studied in A. adsurgens Pallas,
A. austrosibiricus Schischkin, A. inopinatus Boriss. and A. onobrychis L. of the section Onobrychium Bunge of the
genus Astragalus L. Quercetin and kaempferol were found in composition of the aglycons in A. adsurgens; quercetin,
kaempferol, isorhamnetin and rhamnocitrin − in the other species of the section. Th e ratio quercetin/kaempferol in
A. adsurgens correlates with diagnostic characters - short bracts and teeth of the calyx. In A. austrosibiricus and
A. inopinatus correlation between of their diagnostic characters is weak, there are no in the composition of the fl avonoid
aglycons and quantitative relationship. A. onobrychis has an aglycon ratio distinct from other species and clearcut
morphological characters.
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