Adjective
Having the sexes in two separate individuals; -- applied to plants in which the female flowers occur on one individual and the male flowers on another of the same species, and to animals in which the ovum is produced by one individual and the sperm cell by another; -- opposed to monoecious.
Source: Webster's dictionaryAn estimated 48.7% of plant species are either dioecious or self-incompatible obligate out-crossers. citation It is also estimated that about 42% of flowering plants exhibit a mixed mating system in nature. Source: Internet
Heteromorphic sex chromosomes were reported to occur in staminate individuals of dioecious "Kentucky" hemp, but were not found in pistillate individuals of the same variety. Source: Internet
In 1965, E. J. H. Corner reorganized the genus on the basis of breeding system, uniting these four dioecious subgenera into a single dioecious subgenus Ficus. Source: Internet
Dioecy is relatively uncommon in the plant kingdom, and a very low percentage of dioecious plant species have been determined to use the XY system. Source: Internet
ISBN 1-56022-872-5 Subdioecy (the occurrence of monoecious individuals and dioecious individuals within the same population) is widespread. citation citation citation Many populations have been described as sexually labile. Source: Internet
Male and female flowers of the hop plant develop on separate plants ( dioecious ). Source: Internet