<P> Like Amborella, some plants undergo sex - switching . For example, Arisaema triphyllum (Jack - in - the - pulpit) expresses sexual differences at different stages of growth: smaller plants produce all or mostly male flowers; as plants grow larger over the years the male flowers are replaced by more female flowers on the same plant . Arisaema triphyllum thus covers a multitude of sexual conditions in its lifetime: nonsexual juvenile plants, young plants that are all male, larger plants with a mix of both male and female flowers, and large plants that have mostly female flowers . Other plant populations have plants that produce more male flowers early in the year and as plants bloom later in the growing season they produce more female flowers . </P> <P> The complexity of the morphology of flowers and its variation within populations has led to a rich terminology . </P> <Ul> <Li> Androdioecious: having male flowers on some plants, bisexual ones on others . </Li> <Li> Androecious: having only male flowers (the male of a dioecious population); producing pollen but no seed . </Li> <Li> Androgynous: see bisexual . </Li> <Li> Androgynomonoecious: having male, female, and bisexual flowers on the same plant, also called trimonoecious . </Li> <Li> Andromonoecious: having both bisexual and male flowers on the same plant . </Li> <Li> Bisexual: each flower of each individual has both male and female structures, i.e. it combines both sexes in one structure . Flowers of this kind are called perfect, having both stamens and carpels . Other terms used for this condition are androgynous, hermaphroditic, monoclinous and synoecious . </Li> <Li> Dichogamous: having sexes developing at different times; producing pollen when the stigmas are not receptive, either protandrous or protogynous . This promotes outcrossing by limiting self - pollination . Some dichogamous plants have bisexual flowers, others have unisexual flowers . </Li> <Li> Diclinous: see Unisexual . </Li> <Li> Dioecious: having either only male or only female flowers . No individual plant of the population produces both pollen and ovules . (From the Greek for "two households". See also the Wiktionary entry for dioecious .) </Li> <Li> Gynodioecious: having hermaphrodite flowers and female flowers on separate plants . </Li> <Li> Gynoecious: having only female flowers (the female of a dioecious population); producing seed but not pollen . </Li> <Li> Gynomonoecious: having both bisexual and female flowers on the same plant . </Li> <Li> Hermaphroditic: see bisexual . </Li> <Li> Imperfect: (of flowers) having some parts that are normally present not developed, e.g. lacking stamens . See also Unisexual . </Li> <Li> Monoclinous: see bisexual . </Li> <Li> Monoecious: In the commoner narrow sense of the term, it refers to plants with unisexual flowers which occur on the same individual . In the broad sense of the term, it also includes plants with bisexual flowers . Individuals bearing separate flowers of both sexes at the same time are called simultaneously or synchronously monoecious and individuals that bear flowers of one sex at one time are called consecutively monoecious . (From the Greek monos "single" + oikia "house". See also the Wiktionary entry for monoecious .) </Li> <Li> Perfect: (of flowers) see bisexual . </Li> <Li> Polygamodioecious: mostly dioecious, but with either a few flowers of the opposite sex or a few bisexual flowers on the same plant . </Li> <Li> Polygamomonoecious: see polygamous . Or, mostly monoecious, but also partly polygamous . </Li> <Li> Polygamous: having male, female, and bisexual flowers on the same plant . Also called polygamomonoecious or trimonoecious . Or, with bisexual and at least one of male and female flowers on the same plant . </Li> <Li> Protandrous: (of dichogamous plants) having male parts of flowers developed before female parts, e.g. having flowers that function first as male and then change to female or producing pollen before the stigmas of the same plant are receptive . (Protoandrous is also used .) </Li> <Li> Protogynous: (of dichogamous plants) having female parts of flowers developed before male parts, e.g. having flowers that function first as female and then change to male or producing pollen after the stigmas of the same plant are receptive . </Li> <Li> Subandroecious: having mostly male flowers, with a few female or bisexual flowers . </Li> <Li> Subdioecious: having some individuals in otherwise dioecious populations with flowers that are not clearly male or female . The population produces normally male or female plants with unisexual flowers, but some plants may have bisexual flowers, some both male and female flowers, and others some combination thereof, such as female and bisexual flowers . The condition is thought to represent a transition between bisexuality and dioecy . </Li> <Li> Subgynoecious: having mostly female flowers, with a few male or bisexual flowers . </Li> <Li> Synoecious: see bisexual . </Li> <Li> Trimonoecious: see polygamous and androgynomonoecious . </Li> <Li> Trioecious: see polygamous . </Li> <Li> Unisexual: having either functionally male or functionally female flowers . This condition is also called diclinous, incomplete or imperfect . </Li> </Ul> <Li> Androdioecious: having male flowers on some plants, bisexual ones on others . </Li>

What flower has both male and female parts
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