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Related to monoecy: Dioecy, dioecious


also mo·ne·cious  (mə-nē′shəs)
1. Botany Having unisexual reproductive organs or flowers, with the organs or flowers of both sexes borne on a single plant, as in pines and corn (maize).
2. Biology Relating to or exhibiting hermaphroditism; hermaphroditic.

[New Latin Monoecia, class name : mono- + Greek oikiā, dwelling; see weik- in Indo-European roots.]

mo·noe′cism (mə-nē′sĭz′əm) n.
mo·noe′cy (-sē) n.


(mɒˈniːʃəs) or




1. (Botany) (of some flowering plants) having the male and female reproductive organs in separate flowers on the same plant
2. (Biology) (of some animals and lower plants) hermaphrodite
[C18: from New Latin monoecia, from mono- + Greek oikos house]
moˈnoeciously, moˈneciously adv


or mo•ne•cious

(məˈni ʃəs)

1. having the stamens and the pistils in separate flowers on the same plant.
2. having both male and female organs in the same individual; hermaphroditic.
[1755–65; < New Latin (Linnaeus) Monoeci(a) name of the group of monoecious plants (Greek mon- mon- + oîk(os) house + New Latin -ia -ia) + -ous]
mo•noe′cious•ly, adv.
mo•noe′cism (-sɪz əm) mo•noe′cy, n.


Having separate male flowers and female flowers on the same plant. Maize and oaks are monoecious plants. Compare dioecious.


A term that indicates that male and female flowers are produced separately, but on the same plant.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.monoecious - having male and female reproductive organs in the same plant or animalmonoecious - having male and female reproductive organs in the same plant or animal
dioecian, dioecious - having male and female reproductive organs in separate plants or animals
References in periodicals archive ?
The site of occurrence of the study species (i.e., the understory), their herbaceous habit, monoecy, long-lived coenanthia with numerous small flowers, protogyny, and pollen as floral resource are all traits that indicate the occurrence of interactions between these plants and small pollinators from the inner forest.
Recently escaped plants are occasionally monoecious, but monoecy is associated with inbreeding depression, and is therefore very rare in wild C.
Genus Floral sex/Breeding system References Tillandsia Hermaphrodite/ Xenogamy, Gilmartin & Brown, Cleistogamy 1985; Gardner, 1986 Hechtia, Dyckia, Unisexual, bisexual/ Benzing, 2000; Cottendorfia, Polygamomonoecy, monoecy, Lenz, 1995; Lindmania xenogamy Ramirez et al., 2000 Cryptanthus Hermaphrodite, unisexual/ Ramirez, 1996 andromonoecy, xenogamy Pitcarinia Hermaphodite/self Wendt et al., 2001 compatibility, autogamy, xenogamy Table II.
2000) via monoecy (Renner and Ricklefs 1995) or possibly involving transient intermediates such as gynodioecy (Weiblen et al.
Monoecy prevents intraflower self-pollination but does not necessarily prevent intraindividual self-pollination (Charlesworth, 2002).
The ruderal Mercurialis annua is another dioecious species in which self-compatible bisexuality (monoecy) has evolved in regions where selection for reproductive assurance is highest (Pannell 1997a).
Mature trees (basal diameter [approximately]15 cm) of the species produce unisexual catkins (typical monoecy) and flower from April to May in the study area.
In general terms, monoecy is a common floral strategy in tropical forests.
Monoecy is a fairly common sexual system among plants of the Euphorbiaceae family, in particular the genera Euphorbia, Cnidosculus, Croton and Jatropha (Bullock, 1985).