Types of flowers

This article was endorsed by Julián Masats - Technical agricultural engineer specialized in horticulture and gardening.


According to the corolla:

Sympetalous: When the petals are joined, wholly or partly. GAMOPETALA
Polypetalous: If the petals are not joined. DIALISEPALA
Actinomorphic: Can be divided into two exact parts, if a line is drawn from one side to the other, reaching the centre, no matter where the line is drawn (radial symmetry) FALOS
Zygomorphic: Only two symmetrical parts are possible if a line is drawn from one side to the other, reaching the centre. With a single plane of symmetry (bilateral symmetry) ORQUIDEA

Some types of sympetalous flowers:

Regular or actinomorphic







Irregular or zygomorphic



Funnel-shaped flowers are those similar to funnels, very wide at the top and narrower at the base.

campanulate are narrower than tubular, in the shape of a bell.

tubular flowers are longer than wider, in the shape of a tube.

bilabiate flowers present irregular corollas with two very distinctive lips, the upper one made by joining two petals and the lower one by joining three. (See more information about this type of flower in the labiate family)

Some photographic examples of different corollas:

CAMERA Funnel-shaped flower Morning glory (Ipomoea indica), (Convulvulus lanuginosus -Bindweed)

CAMERA Bilabiate flower (Rosmarinus officinalis – Rosemary) (Antirrhinum Majus -Snapdragon

CAMERA Campanulate (Echium vulgare – Viper’s bugloss.)

Some types of dialipetalous flowers:

Regular or actinomorphic


rose- family





Irregular or zygomorphic



poppy-family flowers have four petals arranged in two whorls, such as the poppy.

rose-family flowers are regular flowers with five petals, like the wild rose.

cruciform flowers are regular flowers with four petals cross-shaped.

papilionaceous flowers are very peculiar irregular. The present 5 petals. One at the top, called standard or banner; two side ones, called wings, and two joined ones below which form the keel. (For more information)

CAMERA Rosaceous flower (Strawberry)

Activities about flowers

Do the three following activities before the test:

ACTIVIDADESActivity 1 (Flash activity)

Activity 2 Activity 3

Now, you can do the test:


Take a look at the petals of the following plants and choose the correct answer:


The rosemary has got a campanulate flower

The rosemary has got a bilabiate flower

The rosemary has hot a tubular flower


-This flower is papilionaceous

This flower is from the rose-family

This flower is cruciform

Characteristics of flowersGo back to main page of The Flowers

 To know more about “The flowers” Flowers: Types 1

punto rojo More information about plants cultivation.

Written by Editorial Botanical-online team in charge of content writing

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.