Types of inflorescences

THE FLOWER: INFLORESCENCES

Flowers do not appear solitary in a stem. They are generally arranged in a fixed pattern we call inflorescence. Flowers included in the inflorescence are generally called florets. Inflorescences can be:

Single: when all the flowers are gathered in the same single pattern.

Compound: when a complex pattern is made of another single patterns.

Main single inflorescences

Raceme

Spike

Corymb

RAIM

ESPIGA

CORIMBE

Umbel

Head

RUMBELA

CAPITOL

– In racemes florets are attached along a floral peduncle with stems similar in length. Young florets appear above and old ones below.

Spikes are inflorescences similar to racemes, but florets are attached directly to the floral peduncle,without stems.

See image of a spike: Mint – Menta rotundifolia

– In corymbs. all the florets are arranged along a floral peduncle but, differently to racemes, stems have different length in such a way that all the florets appear at the same flat round level.

– In umbels florets arise from the same point of the peduncle.

– In heads florets bearing no stem are gathered together on a platform-shaped peduncle. This is the inflorescence characteristic in the daisy family.

See image of a head: Milkthistle-Sylibum Marianum

Main compound inflorescences

Panicle

Compound umbel

PANICULA

RUMBELA

Panicles are formed by several racemes gathered together.

Compound umbels are formed by several umbels gathered together.

test

Questions about inflorescences

Choose the correct answer:

margarita

Which kind of inflorescence this daisy is?

An umbel

A head

A spike

The flower above is an inflorescence...

Compound

Special

-Single

Flowers: Types 2Go back to according to the calyx

  To know more about “The flowers”Pollination

punto rojo More information about plants.

Editorial
Written by Editorial Botanical-online team in charge of content writing
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Article updated on: 22 April, 2019

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Botanical-online is an informative page that describes, among other topics, the traditional uses of plants from a therapeutic point of view. Their descriptions do not replace professional advice. Botanical-online is not responsible for self-medication and recommends consulting with the physician.
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