Aloe hereroensis, showing inflorescence with branched peduncle

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.[1] Morphologically, it is the modified part of the shoot of seed plants where flowers are formed. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern.

The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is also referred to as a peduncle. 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. The fruiting stage of an inflorescence is known as an infructescence. Inflorescences may be simple (single) or complex (panicle). The rachis may be one of several types, including single, composite, umbel, spike or raceme.

General characteristics

Inflorescences are described by many different characteristics including how the flowers are arranged on the peduncle, the blooming order of the flowers and how different clusters of flowers are grouped within it. These terms are general representations as plants in nature can have a combination of types. These structural types are largely based on natural selection.[2]


Inflorescences usually have modified foliage different from the vegetative part of the plant. 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 rachis of the plant, but other bracts can exist within the inflorescence itself. They serve a variety of functions which include attracting pollinators and protecting young flowers. According to the presence or absence of bracts and their characteristics we can distinguish:

  • Ebracteate inflorescences: No bracts in the inflorescence.
  • Bracteate inflorescences: The bracts in the inflorescence are very specialised, sometimes reduced to small scales, divided or dissected.
  • Leafy inflorescences: Though often reduced in size, the bracts are unspecialised and look like the typical leaves of the plant, so that the term flowering stem is usually applied instead of inflorescence. This use is not technically correct, as, despite their 'normal' appearance, these leaves are considered, in fact, bracts, so that 'leafy inflorescence' is preferable.
  • Leafy-bracted inflorescences: Intermediate between bracteate and leafy inflorescence.

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.

Terminal flower

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.

  • Indeterminate inflorescence: Monopodial (racemose) growth. The terminal bud keeps growing and forming lateral flowers. A terminal flower is never formed.
  • Determinate inflorescence: Sympodial (cymose) growth. The terminal bud forms a terminal flower and then dies out. Other flowers then grow from lateral buds.

Indeterminate and determinate inflorescences are sometimes referred to as open and closed inflorescences respectively. The indeterminate patterning of flowers is derived from determinate flowers. It is suggested that indeterminate flowers have a common mechanism that prevents terminal flower growth. Based on phylogenetic analyses, this mechanism arose independently multiple times in different species.[3]

In an indeterminate inflorescence there is no true terminal flower and the stem usually has a rudimentary end. In many cases the last true flower formed by the terminal bud (subterminal flower) straightens up, appearing to be a terminal flower. Often a vestige of the terminal bud may be noticed higher on the stem.

In determinate inflorescences the terminal flower is usually the first to mature (precursive development), while the others tend to mature starting from the bottom of the stem. This pattern is called acropetal maturation. When flowers start to mature from the top of the stem, maturation is basipetal, while when the central mature first, divergent.


As with leaves, flowers can be arranged on the stem according to many different patterns. See 'Phyllotaxis' for in-depth descriptions

Similarly arrangement of leaf in bud is called Ptyxis.

When a single or a cluster of flower(s) is located at the axil of a bract, the location of the bract in relation to the stem holding the flower(s) is indicated by the use of different terms and may be a useful diagnostic indicator.

Typical placement of bracts include:

  • Some plants have bracts that subtend the inflorescence, where the flowers are on branched stalks; the bracts are not connected to the stalks holding the flowers, but are adnate or attached to the main stem (Adnate describes the fusing together of different unrelated parts. When the parts fused together are the same, they are connately joined.)
  • Other plants have the bracts subtend the pedicel or peduncle of single flowers.

Metatopic placement of bracts include:

  • When the bract is attached to the stem holding the flower (the pedicel or peduncle), it is said to be recaulescent; sometimes these bracts or bracteoles are highly modified and appear to be appendages of the flower calyx. Recaulescences is the fusion of the subtending leaf with the stem holding the bud or the bud itself,[4] thus the leaf or bract is adnate to the stem of flower.
  • When the formation of the bud is shifted up the stem distinctly above the subtending leaf, it is described as concaulescent.


There is no general consensus in defining the different inflorescences. The following is based on Focko Weberling's Morphologie der Blüten und der Blütenstände (Stuttgart, 1981). The main groups of inflorescences are distinguished by branching. Within these groups, the most important characteristics are the intersection of the axes and different variations of the model. They may contain many flowers (pluriflor) or a few (pauciflor). Inflorescences can be simple or compound.

Simple inflorescences

Inflorescence of sessile disc florets forming the capitulum

Indeterminate or racemose

Indeterminate simple inflorescences are generally called racemose /ˈræsɪms/. The main kind of racemose inflorescence is the raceme (/ˈræsm/, from classical Latin racemus, cluster of grapes).[5] The other kind of racemose inflorescences can all be derived from this one by dilation, compression, swelling or reduction of the different axes. Some passage forms between the obvious ones are commonly admitted.

  • A raceme is an unbranched, indeterminate inflorescence with pedicellate (having short floral stalks) flowers along the axis.
  • A spike is a type of raceme with flowers that do not have a pedicel.
  • 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.
  • 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. It is characteristic of Umbelliferae.
  • 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.
  • A flower head or capitulum is a very contracted raceme in which the single sessile flowers share are borne on an enlarged stem. It is characteristic of Dipsacaceae.
  • A catkin or ament is a scaly, generally drooping spike or raceme. Cymose or other complex inflorescences that are superficially similar are also generally called thus.

Determinate or cymose

Determinate simple inflorescences are generally called cymose. The main kind of cymose inflorescence is the cyme (pronounced 'saim', from the Latin cyma in the sense 'cabbage sprout', from Greek kuma 'anything swollen').[6][7] Cymes are further divided according to this scheme:

  • Only one secondary axis: monochasium
    • Secondary buds always develop on the same side of the stem: helicoid cyme or bostryx
      • The successive pedicels are aligned on the same plane: drepanium
    • Secondary buds develop alternately on the stem : scorpioid cyme
      • The successive pedicels are arranged in a sort of spiral: cincinnus (characteristic of the Boraginaceae and Commelinaceae)
      • The successive pedicels follow a zig-zag path on the same plane: rhipidium (many Iridaceae)
  • Two secondary axes: dichasial cyme
    • Secondary axis still dichasial: dichasium (characteristic of Caryophyllaceae)
    • Secondary axis monochasia: double scorpioid cyme or double helicoid cyme
  • More than two secondary axes: pleiochasium

A cyme can also be so compressed that it looks like an umbel. Strictly speaking this kind of inflorescence could be called umbelliform cyme, although it is normally called simply 'umbel'.

Another kind of definite simple inflorescence is the raceme-like cyme or botryoid; that is as a raceme with a terminal flower and is usually improperly called 'raceme'.

A reduced raceme or cyme that grows in the axil of a bract is called a fascicle. A verticillaster is a fascicle with the structure of a dichasium; it is common among the Lamiaceae. Many verticillasters with reduced bracts can form a spicate (spike-like) inflorescence that is commonly called a spike.

Compound inflorescences

Simple inflorescences are the basis for compound inflorescences or synflorescences. The single flowers are there replaced by a simple inflorescence, which can be both a racemose or a cymose one. Compound inflorescences are composed of branched stems and can involve complicated arrangements that are difficult to trace back to the main branch.

A kind of compound inflorescence is the double inflorescence, in which the basic structure is repeated in the place of single florets. For example, a double raceme is a raceme in which the single flowers are replaced by other simple racemes; the same structure can be repeated to form triple or more complex structures.

Compound raceme inflorescences can either end with a final raceme (homoeothetic), or not (heterothetic). A compound raceme is often called a panicle. Note that this definition is very different from that given by Weberling.

Compound umbels are umbels in which the single flowers are replaced by many smaller umbels called umbellets. The stem attaching the side umbellets to the main stem is called a ray.

The most common kind of definite compound inflorescence is the panicle (of Webeling, or 'panicle-like cyme'). A panicle is a definite inflorescence that is increasingly more strongly and irregularly branched from the top to the bottom and where each branching has a terminal flower.

The so-called cymose corymb is similar to a racemose corymb but has a panicle-like structure. Another type of panicle is the anthela. An anthela is a cymose corymb with the lateral flowers higher than the central ones.

A raceme in which the single flowers are replaced by cymes is called a (indefinite) thyrse. The secondary cymes can be of any of the different types of dichasia and monochasia. A botryoid in which the single flowers are replaced by cymes is a definite thyrse or thyrsoid. Thyrses are often confusingly called panicles.

Other combinations are possible. For example, heads or umbels may be arranged in a corymb or a panicle.


The family Asteraceae is characterised by a highly specialised head technically called a calathid (but usually referred to as 'capitulum' or 'head'). 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. cyathium), usually organised in umbels.

Some species have inflorescences reduced to composite flowers or pseudanthia, in which case it is difficult to differentiate between inflorescences and single flowers.[8]

Development and patterning


Genetic basis

Genes that shape inflorescence development have been studied at great length in Arabidopsis. LEAFY (LFY) is a gene that promotes floral meristem identity, regulating inflorescence development in Arabidopsis.[9] Any alterations in timing of LFY expression can cause formation of different inflorescences in the plant.[10] Genes similar in function to LFY include APETALA1 (AP1). Mutations in LFY, AP1, and similar promoting genes can cause conversion of flowers into shoots.[9] In contrast to LEAFY, genes like terminal flower (TFL) support the activity of an inhibitor that prevents flowers from growing on the inflorescence apex (flower primordium initiation), maintaining inflorescence meristem identity.[11] Both types of genes help shape flower development in accordance with the ABC model of flower development. Studies have been recently conducted or are ongoing for homologs of these genes in other flower species.

Environmental influences

Inflorescence-feeding insect herbivores shape inflorescences by reducing lifetime fitness (how much flowering occurs), seed production by the inflorescences, and plant density, among other traits.[12] In the absence of this herbivory, inflorescences usually produce more flower heads and seeds.[12] Temperature can also variably shape inflorescence development. High temperatures can impair the proper development of flower buds or delay bud development in certain species, while in others, an increase in temperature can hasten inflorescence development.[13][14][15]

Meristems and inflorescence architecture

The shift from the vegetative to reproductive phase of a flower involves the development of an inflorescence meristem that generates floral meristems.[16] Plant inflorescence architecture depends on which meristems becomes flowers and which become shoots.[17] Consequently, genes that regulate floral meristem identity play major roles in determining inflorescence architecture because their expression domain will direct where the plant's flowers are formed.[16]

On a larger scale, inflorescence architecture affects quality and quantity of offspring from selfing and outcrossing, as the architecture can influence pollination success. For example, Asclepias inflorescences have been shown to have an upper size limit, shaped by self-pollination levels due to crosses between inflorescences on the same plant or between flowers on the same inflorescence.[18] In Aesculus sylvatica, it has been shown that the most common inflorescence sizes are correlated with the highest fruit production as well.[19]


  1. ^ Guertin, P., Barnett, L., Denny, E.G., Schaffer, S.N. 2015. USA National Phenology Network Botany Primer. USA-NPN Education and Engagement Series 2015-001.
  2. ^ Kirchoff, Bruce K.; Claßen-Bockhoff, Regine (2013). "Inflorescences: concepts, function, development and evolution". Annals of Botany. 112 (8): 1471–6. doi:10.1093/aob/mct267. PMC 3828949. PMID 24383103.
  3. ^ Bradley, Desmond; Ratcliffe, Oliver; Vincent, Coral; Carpenter, Rosemary; Coen, Enrico (1997-01-03). "Inflorescence Commitment and Architecture in Arabidopsis". Science. 275 (5296): 80–83. doi:10.1126/science.275.5296.80. ISSN 0036-8075. PMID 8974397. S2CID 20301629.
  4. ^ Kubitzki, Klaus, and Clemens Bayer. 2002. Flowering plants, Dicotyledons: Malvales, Capparales, and non-betalain Caryophyllales. The Families and genera of vascular plants, 5. Berlin: Springer. p. 77
  5. ^ Oxford English Dictionary. Raceme 2. Bot. A type of inflorescence in which the flowers are arranged on short, nearly equal, lateral pedicels, at equal distances along a single elongated axis
  6. ^ Collins English Dictionary. 8th Edition first published in 2006
  7. ^ Oxford English Dictionary. Cyme(1) Bot. A species of inflorescence wherein the primary axis bears a single terminal flower which develops first, the system being continued by axes of secondary and higher orders which develop successively in like manner; a centrifugal or definite inflorescence: opposed to Raceme. Applied esp. to compound inflorescences of this type forming a more or less flat head.
  8. ^ Tucker, Shirley C.; Grimes, James (1999-10-01). "The inflorescence: Introduction". The Botanical Review. 65 (4): 303–316. doi:10.1007/BF02857752. ISSN 0006-8101. S2CID 29599096.
  9. ^ a b Shannon, S.; Meeks-Wagner, D. R. (1993-06-01). "Genetic Interactions That Regulate Inflorescence Development in Arabidopsis". The Plant Cell. 5 (6): 639–655. doi:10.1105/tpc.5.6.639. ISSN 1040-4651. PMC 160302. PMID 12271079.
  10. ^ Schultz, E. A.; Haughn, G. W. (1991-08-01). "LEAFY, a Homeotic Gene That Regulates Inflorescence Development in Arabidopsis". The Plant Cell. 3 (8): 771–781. doi:10.1105/tpc.3.8.771. ISSN 1040-4651. PMC 160044. PMID 12324613.
  11. ^ Alvarez, John; Guli, Catherine L.; Yu, Xiang-Hua; Smyth, David R. (1992-01-01). "terminal flower: a gene affecting inflorescence development in Arabidopsis thaliana". The Plant Journal. 2 (1): 103–116. doi:10.1111/j.1365-313X.1992.00103.x. ISSN 1365-313X.
  12. ^ a b Louda, Svata M.; Potvin, Martha A. (1995-01-01). "Effect of Inflorescence-Feeding Insects on the Demography and Lifetime of a Native Plant". Ecology. 76 (1): 229–245. doi:10.2307/1940645. ISSN 1939-9170. JSTOR 1940645.
  13. ^ Moss, G (27 November 2015). "Influence of Temperature and Photoperiod on Flower Induction and Inflorescence Development in Sweet Orange (Citrus Sinensis L. Osbeck)". Journal of Horticultural Sciences. 44 (4): 311–320. doi:10.1080/00221589.1969.11514314.
  14. ^ Bjorkman, T.; Pearson, K. J. (1998-01-01). "High temperature arrest of inflorescence development in broccoli (Brassica oleracea var. italica L.)". Journal of Experimental Botany. 49 (318): 101–106. doi:10.1093/jxb/49.318.101. ISSN 0022-0957.
  15. ^ BREWSTER, J. L. (1983-04-01). "Effects of Photoperiod, Nitrogen Nutrition and Temperature on Inflorescence Initiation and Development in Onion (Allium cepa L.)". Annals of Botany. 51 (4): 429–440. doi:10.1093/oxfordjournals.aob.a086487. ISSN 0305-7364.
  16. ^ a b Souer, E.; Krol, A. van der; Kloos, D.; Spelt, C.; Bliek, M.; Mol, J.; Koes, R. (1998-02-15). "Genetic control of branching pattern and floral identity during Petunia inflorescence development". Development. 125 (4): 733–742. ISSN 0950-1991. PMID 9435293.
  17. ^ Benlloch, R.; Berbel, A.; Serrano-Mislata, A.; Madueno, F. (2007-09-01). "Floral Initiation and Inflorescence Architecture: A Comparative View". Annals of Botany. 100 (3): 659–676. doi:10.1093/aob/mcm146. ISSN 0305-7364. PMC 2759223. PMID 17679690.
  18. ^ WYATT, ROBERT (1980-05-01). "The Reproductive Biology of Asclepias Tuberosa: I. Flower Number, Arrangement, and Fruit-Set". New Phytologist. 85 (1): 119–131. doi:10.1111/j.1469-8137.1980.tb04453.x. ISSN 1469-8137.
  19. ^ Wyatt, Robert (1982-04-01). "Inflorescence Architecture: How Flower Number, Arrangement, and Phenology Affect Pollination and Fruit-Set". American Journal of Botany. 69 (4): 585–594. doi:10.1002/j.1537-2197.1982.tb13295.x. ISSN 1537-2197. JSTOR 2443068.


  • Focko Weberling: Morphologie der Blüten und der Blütenstände; Zweiter Teil. Verlag Eugen Ulmer, Stuttgart 1981
  • Wilhelm Troll: Die Infloreszenzen; Erster Band. Gustav Fischer Verlag, Stuttgart 1964
  • Wilhelm Troll: Die Infloreszenzen; Zweiter Band, Erster Teil. Gustav Fischer Verlag, Stuttgart 1969
  • Wilhelm Troll: Praktische Einführung in die Pflanzenmorphologie. Gustav Fischer Verlag, Jena 1957
  • Bernhard Kausmann: Pflanzenanatomie. Gustav Fischer Verlag, Jena 1963
  • Walter S. Judd, Christopher S. Campbell, Elizabeth A. Kellogg, Peter F. Stevens, Michael J. Donoghue: Plant Systematics: A Phylogenetic Approach, Sinauer Associates Inc. 2007
  • Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website[1]. Version 7, May 2006 [and more or less continuously updated since].
  • Strasburger, Noll, Schenck, Schimper: Lehrbuch der Botanik für Hochschulen. 4. Auflage, Gustav Fischer, Jena 1900, p. 459
  • R J Ferry. Inflorescences and Their Names. The McAllen International Orchid Society Journal.Vol. 12(6), pp. 4-11 June 2011

External links

Media files used on this page

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Spirre (inflorescence).svg
Blütenstand: Spirre
Aloe hereroensis Auob C15.JPG
Author/Creator: Harald Süpfle, Licence: CC BY-SA 2.5
Aloe hereroensis, Auob Rivier, Namibia
Pedicularis verticillata a3.jpg
(c) I, Selso, CC-BY-SA-3.0
Pedicularis verticillata (pl. gnidosz okółkowy), habitat: West Tatra Mountains, Hala Upłaz
Astrantia minor.jpg
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Astrantia minor : Lac de la Grande Sitre - (Belledonne, France)
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Euphorbia tridentata
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Gladiolus imbricatus a1.jpg
Author/Creator: Opioła Jerzy, Licence: CC BY 2.5
Gladiolus imbricatus (pl. mieczyk dachówkowaty)
Author/Creator: Stefan Laarmann, Licence: CC BY 2.5
Doldige Schleifenblume, Iberis umbellata, weiß und violett
Lemont rice.jpg

Lemont rice from

Image Number K2958-2

Lemont was the first high-yielding semidwarf rice variety that matured early and had high milling yields. Photo by David Nance.
Koepfchen (inflorescence).svg
Blütenstand: Köpfchen
Author/Creator: Rasbak, Licence: CC-BY-SA-3.0
Akropetale Effloration (inflorescence).svg
Blütenstand: akropetale Effloration
Brakteose beblätterung 2 (inflorescence).svg
Blütenstand: brakteose Beblätterung
Traube dekussiert (inflorescence).svg
Blütenstand: Traube dekussiert
Lamium orvala3.jpg
Author/Creator: Kurt Stüber [1], Licence: CC-BY-SA-3.0

Species: Lamium orvala
Family: Lamiaceae

Image No. 4
Bluete und Tragblatt (inflorescence).svg
Blüte mit Tragblatt: Normalfall
Unknown plant 01 bgiu.jpg
Author/Creator: No machine-readable author provided. Bogdan assumed (based on copyright claims)., Licence: CC-BY-SA-3.0
Aristolochia clematitis
Pseudoterminalbluete (inflorescence).svg
Blütenstand: Pseudoterminalblüte
Rhinanthus angustifolius.jpg
(c) Hinko at Dutch Wikipedia, CC-BY-SA-3.0
Grote Ratelaar (Rhinanthus angustifolius), Lendevallei 28 juni 2003, eigen foto
Melilotus officinalis01.jpg
Author/Creator: unknown, Licence: CC-BY-SA-3.0
Homöokladische Thyrse (inflorescence).svg
Blütenstand: homöokladische Thyrse
Fleur 9 - VTdJ.JPG
Author/Creator: unknown, Licence: CC BY-SA 2.0
Frondobrakteose Beblätterung (inflorescence).svg
Blütenstand: frondobrakteose Beblätterung
Schirmrispe (inflorescence).svg
Blütenstand: Schrimrispe
Lolium multiflorum detail.jpeg
Author/Creator: Kristian Peters -- Fabelfroh 09:38, 2 January 2007 (UTC), Licence: CC-BY-SA-3.0
Welsches Weidelgras (Lolium multiflorum), Gragetopshof
Divergente effloration (inflorescence).svg
Blütenstand: divergente Effloration
Frondose beblätterung (inflorescence).svg
Blütenstand: frondose Beblätterung
Konkauleszenz (inflorescence).svg
Blüte mit Tragblatt: Konkauleszenz
Rekauleszenz (inflorescence).svg
Inflorescence diagrams
Doppelkoepfchen (inflorescence).svg
Blütenstand: Doppelköpfchen
Author/Creator: unknown, Licence: CC-BY-SA-3.0
Dichasium (inflorescence).svg
Blütenstand: Dichasium
Mentha longifolia 2005.08.02 09.53.56.jpg
Author/Creator: Michael Becker, Licence: CC-BY-SA-3.0
Rossminze (Mentha longifolia)
Coleus inflorescence.JPG
Author/Creator: Abhishek727Abhishek Mishra, Licence: CC BY-SA 3.0
Coleus Inflorescence
Vigne inflorescence 2.jpg
Vitis vinifera; Anordnung der Gescheine, des länglichen, rispenartigen Blütenstands der Weinrebe auf einem einjährigen Trieb
Wisteria sinensisPNPG.jpg
(c) I, PatríciaR, CC-BY-SA-3.0
Wisteria sinensis (glicínia) em Lindoso, Parque Nacional da Peneda-Gerês.
Doppelwickel (inflorescence).svg
Blütenstand: Doppelwickel
Starr 010419-0021 Hedera helix.jpg
(c) Forest & Kim Starr, CC BY 3.0
Hedera helix (flowers & young fruit). Location: Maui, Kula
Euphorbia cyparissias 02 bgiu.jpg
Author/Creator: No machine-readable author provided. Bogdan assumed (based on copyright claims)., Licence: CC-BY-SA-3.0
Echinops Ain France.jpg
Author/Creator: User:Stephane8888 (Stephane8888 Wiktionnaire), Licence: CC BY-SA 2.5
Flower (Echinops) in Ain (east of France), august 2005
Gentiana lutea1.JPG
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Gentiana lutea (from the mountain Charmant Som - Chartreuse - France)
Dichasium (top view) (inflorescence).svg
Blütenstand: Dichasium, schematisch von oben
Dichasialer zymus (inflorescence).svg
Blütenstand: Dichasialer Zymus
Schirmtraube (inflorescence).svg
Blütenstand: Schirmtraube
Doppeltraube (inflorescence).svg
Blütenstand: Doppeltraube alternativ
Schroef (bloeiwijze).jpg
Author/Creator: Rasbak, Licence: CC-BY-SA-3.0
Bostryx: side and top view
Sikkel (bloeiwijze).jpg
Author/Creator: Rasbak, Licence: CC-BY-SA-3.0
Tilia cordata Owoce lipy 656.jpg
Author/Creator: Pleple2000, Licence: CC-BY-SA-3.0
Fruit of Large-leaved Lime (note ribbed fruit)
Fiore di geranio.JPG
Author/Creator: unknown, Licence: CC-BY-SA-3.0
Doppeltraube 2 (inflorescence).svg
Blütenstand: Doppeltraube
Sambucus nigra 003.jpg
Author/Creator: Willow, Licence: CC BY-SA 2.5
Blüten des Schwarzer Holunders (Sambucus nigra) am Weinpfad bei Cölbe, Hessen, Deutschland
Botryoid (inflorescence).svg
Blütenstand: botryoid
Canna Endeavour 01.jpg

Claines Canna

, Licence: Cc-by-sa-3.0

Canna Aquatic Group 'Endeavour', Longwood

Achillea (yarrow) - 16.JPG
Author/Creator: unknown, Licence:
Hebe albicans.jpg
Author/Creator: Alan Pascoe, Licence: CC-BY-SA-3.0
The leaves and flowers of Hebe albicans, a plant of the Hebe genus. The picture was taken at approximately 12:30 UTC under conditions of broken cloud. The equipment used was a Toshiba PDR-M1 digital camera in Auto and Macro modes.
Dreifachdolde (inflorescence).svg
Blütenstand: Dreifachdolde
Juncus inflexus.jpeg
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Blaugrüne Binse Juncus inflexus, Gragetopshof bei Rostock
Brakteose beblätterung (inflorescence).svg
Blütenstand: brakteose Beblätterung
Doppelschraubel (inflorescence).svg
Blütenstand: Doppelschraubel
Aesculus hippocastanum flori.jpg
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Türkenbund dunkel.jpg
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Kolben (inflorescence).svg
Blütenstand: Kolben
Author/Creator: Kagami, Licence: CC BY-SA 3.0
This diagram is of Monochasium, a special type of Cymose inflorescence. Edit this at Structured Data on Commons
Sunflower macro wide.jpg
Author/Creator: Muhammad Mahdi Karim, Licence: GFDL 1.2
Close-up view of a sunflower, Helianthus annuus capitulum showing the disc florets. From the center of the flower head, inflorescence of small disc florets emerge in a spiral fashion followed by the larger yellow ray florets- parts of which are seen at the edges of the picture above. In the center of the flower seen above is a lepidopteran larva.
Symphytum officinale 02.jpg
Author/Creator: Agnieszka Kwiecień (Nova), Licence: CC BY 2.5
Common comfrey (Symphytum officinale) inflorescence, growing on the bank of the larger pond in the Sołtysowicki Forest, Wrocław, Poland.
Epilobe feuilles etroites 01.jpg
Author/Creator: unknown, Licence: CC BY-SA 2.0 fr
Alnus incana rugosa catkin.jpg
Alnus incana ssp. rugosa — Speckled Alder.
  • Picture of catkin (male inflorescence.)
Berberis vernae MS 4426.jpg
Author/Creator: Marco Schmidt, Licence: CC BY-SA 2.5
Berberis vernae, Bot. Garden of the University of Frankfurt
Kaetzchen (inflorescence).svg
Blütenstand: Kätzchen
Basipetale effloration (inflorescence).svg
Blütenstand: basipetale Effloration
Arum maculatum.jpeg
Author/Creator: Kristian Peters -- Fabelfroh 09:03, 4 July 2006 (UTC), Licence: CC-BY-SA-3.0
Detailaufnahme der Blüte des Gefleckten Aronstabes Arum maculatum
Saint John's wort flowers.jpg

flagstaffotos [at]
Canon 20D + Tamron 28-75mm f/2.8
Cut out view 04.png
Cut out view 03.png
Cut out view 01.png
, Licence: GFDL 1.2
St. John's Wort flowers
Laserpitium latifolium2.jpg
Author/Creator: Kurt Stüber [1], Licence: CC-BY-SA-3.0

Species: Laserpitium latifolium
Family: Apiaceae

Image No. 3
Tomato scanned.jpg
Author/Creator: David Besa from Sonoma, USA, Licence: CC BY 2.0
A scanned red tomato, along with leaves and flowers.