Analysis of sexual polymorphism of the plant from subclass Rosidae in Siberia

Sexual systems and association with several ecological and life history attributes were examined for 977 native angiosperms of subclass Rosidae in Siberia. The majority of angiosperms in Siberia are hermaphrodites (87.7%, N = 867). The most widespread forms of sexual differentiations are andromonoecy, gynodioecy, and dioecy. The rarest forms of sexual differentiations are monoecy, trioecy, and androdioecy. Seven of 34 families are the richest in species with sexual differentiation: Aceraceae, Elaeagnaceae, Haloragaceae, Rhamnaceae, Dipsacaceae, Apiaceae, and Geraniaceae.