Inflorescence Types With Diagrams & Examples

Inflorescence is a modified form of a flower but looks like a bunch of flowers.

In other terms, it is considered as an advanced form of a flower in the evolution.

Unlike traditional flowers like a rose, marry gold or even lotus, these flowers quite different in their appearance and arrangement.

An inflorescence is a bunch of flowers present on a single peduncle. Peduncle is the part of the stem which extends to bear a flower.

So it means in an inflorescence, there are many tiny flowers arranged on the peduncle.

Types of inflorescence:

Inflorescence can be classified based on their origin (location) on the plant and also based on the development of peduncle.inflorescence types

Based on origin on the plant they are of three types as

  1. Terminal inflorescence.
  2. Axillary inflorescence
  3. Intercalary inflorescence.

Terminal inflorescence is one where the inflorescence develops on the tips of main stem and branches. Ex: Croton plant.

Axillary inflorescence is one which originates from the leaf axils. Ex: Dolichos plant

Intercalary inflorescence is one which is borne at the inter-nodes of the stem. Ex: Callistemon.

Based on the growth of peduncle, the inflorescence are again divided as

  1. Racemose
  2. Cymose
  3. Special types.

Racemose types: here the peduncle grow very long and flowers are arranged in acropetal manner (acro= tip, petal= petals). That is older flowers are present at bottom while new ones are at the tip. This racemose inflorescence is again of 6 types as

  1. Simple raceme
  2. Compund raceme
  3. Simple corymb
  4. Compound corymb
  5. Simple Umbel
  6. Compound Umbel

Cymose: Here the inflorescence has a flower at the top of peduncle. Then other flowers emerge in the axis below this flower. This is of 5 types as

  1. Solitary cyme
  2. Simple cyme
  3. Monochasial cyme
  4. Dichasial cyme
  5. Polychasial cyme

Besides, there are also special types as

  1. Hypanthodium
  2. Verticillaster
  3. Cyathium
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