Inflorescence

cymeinflorescencescymescymoseleafy-bractedclustersflowerheadscapitulumcymulesleafy
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches.wikipedia
6,490 Related Articles

Flower

flowersfloralflowering
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches.
In those species that have more than one flower on an axis, the collective cluster of flowers is termed an inflorescence.

Plant stem

stemstemsinternode
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches.
The nodes hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or inflorescences (flowers)). Adventitious roots may also be produced from the nodes.

Peduncle (botany)

pedunclepedunclesstalk
The stem holding the whole inflorescence is called a peduncle and the major axis (incorrectly referred to as the main stem) holding the flowers or more branches within the inflorescence is called the rachis.
In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.

Panicle

paniclescorymbpaniculate
Inflorescences may be simple (single) or complex (panicle).
A panicle is a much-branched inflorescence.

Pedicel (botany)

pedicelpedicelspediceled
The stalk of each single flower is called a pedicel.
A pedicel is a stem that attaches a single flower to the inflorescence.

Infructescence

fruiting conesinfructescences ('fruiting bodies')infrutescence
The fruiting stage of an inflorescence is known as an infructescence.
Infructescence (fruiting head) is defined as the ensemble of fruits derived from the ovaries of an inflorescence.

Bract

phyllariesspathebracts
Considering the broadest meaning of the term, any leaf associated with an inflorescence is called a bract. A bract is usually located at the node where the main stem of the inflorescence forms, joined to the main stem of the plant, but other bracts can exist within the inflorescence itself.
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale.

Raceme

racemoseracemesspikes
The rachis may be one of several types, including single, composite, umbel, spike or raceme. Plant organs can grow according to two different schemes, namely monopodial or racemose and sympodial or cymose. In inflorescences these two different growth patterns are called indeterminate and determinate respectively, and indicate whether a terminal flower is formed and where flowering starts within the inflorescence.
A raceme ( or ) is an unbranched, indeterminate type of inflorescence bearing pedicellate flowers (flowers having short floral stalks called pedicels) along its axis.

Asteraceae

daisy familysunflower familydisc floret
If many bracts are present and they are strictly connected to the stem, like in the family Asteraceae, the bracts might collectively be called an involucre. If the inflorescence has a second unit of bracts further up the stem, they might be called an involucel.
Compositae (an alternative name ) means "composite" and refers to the characteristic inflorescence, a special type of pseudanthium found in only a few other angiosperm families.

Umbel

umbelsumbellateumbellule
An umbel is a type of raceme with a short axis and multiple floral pedicels of equal length that appear to arise from a common point.
An umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) which spread from a common point, somewhat like umbrella ribs.

Fruit

fruitsseed podfruiting
The fruiting stage of an inflorescence is known as an infructescence.
A multiple fruit is one formed from a cluster of flowers (called an inflorescence). Each flower produces a fruit, but these mature into a single mass. Examples are the pineapple, fig, mulberry, osage-orange, and breadfruit.

Araceae

aroidaroidsarum
A spadix is a spike of flowers densely arranged around it, enclosed or accompanied by a highly specialised bract called a spathe. It is characteristic of the family Araceae.
The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix.

Rachis

rachidesaxisrachidian
The stem holding the whole inflorescence is called a peduncle and the major axis (incorrectly referred to as the main stem) holding the flowers or more branches within the inflorescence is called the rachis.
It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle.

Corymb

corymbosecorymbscorymbiform
A racemose corymb is an unbranched, indeterminate inflorescence that is flat-topped or convex due to their outer pedicels which are progressively longer than inner ones.
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are born on longer pedicels than the inner, bringing all flowers up to a common level.

Sympodial

Plant organs can grow according to two different schemes, namely monopodial or racemose and sympodial or cymose. In inflorescences these two different growth patterns are called indeterminate and determinate respectively, and indicate whether a terminal flower is formed and where flowering starts within the inflorescence.
The apical meristem may be consumed to make an inflorescence or other determinate structure, or it may be aborted.

Indeterminate growth

indeterminatedeterminatedeterminate growth
Plant organs can grow according to two different schemes, namely monopodial or racemose and sympodial or cymose. In inflorescences these two different growth patterns are called indeterminate and determinate respectively, and indicate whether a terminal flower is formed and where flowering starts within the inflorescence.
In reference to an inflorescence (a shoot specialised for bearing flowers, and bearing no leaves other than bracts), an indeterminate type (such as a raceme) is one in which the first flowers to develop and open are from the buds at the base, followed progressively by buds nearer to the growing tip.

Spadix (botany)

spadixspadicesspathe
A spadix is a spike of flowers densely arranged around it, enclosed or accompanied by a highly specialised bract called a spathe. It is characteristic of the family Araceae.
In botany, a spadix (plural spadices, ) is a type of spike inflorescence having small flowers borne on a fleshy stem.

Pseudanthium

flower headsflower headcapitula
Any flower in an inflorescence may be referred to as a floret, especially when the individual flowers are particularly small and borne in a tight cluster, such as in a pseudanthium.
A pseudanthium (Greek for "false flower"), also called a flower head or composite flower, is a special type of inflorescence, in which anything from a small cluster to hundreds or sometimes thousands of flowers are grouped together to form a single flower-like structure.

Boraginaceae

borage familyforget-me-not familyBoraginaceae family
The successive pedicels are arranged in a sort of spiral: cincinnus (characteristic of the Boraginaceae and Commelinaceae)
Most species have inflorescences that have a coiling shape, at least when new.

Commelinaceae

dayflower familyCommelinacéesJunci
The successive pedicels are arranged in a sort of spiral: cincinnus (characteristic of the Boraginaceae and Commelinaceae)
The variation in morphology, especially that of the flower and inflorescence, is considered to be exceptionally high amongst the angiosperms.

Ficus

figfigsfig tree
The family Poaceae has a peculiar inflorescence of small spikes (spikelets) organised in panicles or spikes that are usually simply and improperly referred to as spike and panicle. The genus Ficus (Moraceae) has an inflorescence called syconium and the genus Euphorbia has cyathia (sing.
Fig species are characterized by their unique inflorescence and distinctive pollination syndrome, which utilizes wasp species belonging to the family Agaonidae for pollination.

Caryophyllaceae

pink familycarnationcarnation family
Secondary axis still dichasial: dichasium (characteristic of Caryophyllaceae)
The hermaphroditic flowers are terminal, blooming singly or branched or forked in cymes.

Syconium

syconiafig-treessycon
The family Poaceae has a peculiar inflorescence of small spikes (spikelets) organised in panicles or spikes that are usually simply and improperly referred to as spike and panicle. The genus Ficus (Moraceae) has an inflorescence called syconium and the genus Euphorbia has cyathia (sing.
A syconium is the type of inflorescence borne by figs (genus Ficus), formed by an enlarged, fleshy, hollow receptacle with multiple ovaries on the inside surface.

Moraceae

mulberry familyMoraceae sp.Mulberry
The family Poaceae has a peculiar inflorescence of small spikes (spikelets) organised in panicles or spikes that are usually simply and improperly referred to as spike and panicle. The genus Ficus (Moraceae) has an inflorescence called syconium and the genus Euphorbia has cyathia (sing.
The 'flowers' of Moraceae are often pseudanthia (reduced inflorescences).

ABC model of flower development

foliar theorythe ABC model of flower development
Both types of genes help shape flower development in accordance with the ABC model of flower development.
There are three physiological developments that must occur in order for this to take place: firstly, the plant must pass from sexual immaturity into a sexually mature state (i.e. a transition towards flowering); secondly, the transformation of the apical meristem’s function from a vegetative meristem into a floral meristem or inflorescence; and finally the growth of the flower’s individual organs.