Difference between Convolvulaceae and Solanaceae

Convolvulaceae and Solanaceae are two families of angiosperms belonging to the same order Solanales. The order Solanales belongs to the Asterid group of dicotyledons. Previously the order was named as Polemoniales. Let us find out the point of differences between these families.

Family Convolvulaceae

Kingdom: Plantae

Clade: Angiosperms

Order: Solanales

Family: Convolvulaceae

The Convolvulaceae is the morning glory family of the Solanales order. It is mostly found in the form of herbaceous vines, sometimes also trees, herbs and shrubs. There are around 60 genus known, with more than 1600 species. Examples include bindweed, dodder and sweet potato.

Family Solanaceae

Kingdom: Plantae

Clade: Angiosperms

Order: Solanales

Family: Solanaceae

The Solanaceae is the nightshade family of the Solanales order. They range from vines, lianas and epiphytes to shrubs and trees. About 98 genera and 2700 species of the family are known. Examples include potatoes, tomatoes, eggplants and tobacco.

They are distributed all over the world except Antarctica.

Find out the tabulated differences between Convolvulaceae and Solanaceae below.




They are the morning glory family of the Solanales order.

They are the nightshade family of the Solanales order.

Number of species

More than 1600 species in 60 genuses are known.

More than 2700 species in 98 genuses are known.


The leaves are simple and alternate.

The leaves are alternate and opposed to alternate.


Funnel-shaped, radially symmetrical corolla is the characteristic of the family.

The flowers are medium-sized, and are either fragrant, fetid or inodoros.


It has winding stems.

The stems are woody or herbaceous.


It produces ergoline and loline alkaloids, and psychedelic drugs.

It produces alkaloids, such as tropanes, capsaicin, solanine and nicotine.

Economic Importance

Some members of the family have showy plants (morning glory), while some are troublesome weeds (bindweed, dodder), some are tuberous roots (sweet potato and water spinach), and others are also used for medicinal purposes.

The family consists of the most important food species such as potato, tomato, aubergine and bell peppers. Nicotiana is a genus, which is cultivated worldwide to produce tobacco. Species such as Petunia and Brugmansia are ornamentals.

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Frequently Asked Questions


What is the order of Convolvulaceae and Solanaceae?

Convolvulaceae and Solanaceae are included in the order Polemoniales or Solanales.

How do you identify a Solanaceae family?

The Solanaceae family is characterised by five petals, sepals and stamens and their leaves are mostly alternately arranged.


Why is the Solanaceae family called nightshade?

The Solanaceae family is called nightshade because they prefer to grow in shady areas, while some flowers in the family grow at night.


Which families belong to the order Solanales?

Five families come under the order Solanales. The five families are Solanaceae, Convolvulaceae, Montiniaceae, Sphenociaceae and Hydroleaceae.


On which features of plant species are families characterised?

Families are characterized on the basis of vegetative and reproductive structures.


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