General

Angiosperms



Bee pollinating a rose

What they are and general characteristics

Angiosperms are plants that have seeds protected by fruits. These plants also feature flowers.

The presence of flowers and fruits is fundamental for the development of angiosperms. The flowers have bright colors, nectar and smells that attract birds and insects that will help the pollination process. Already fruits are important to protect the seeds of plants.

Angiosperms can be divided into two groups:

Monocotyledons

- have triple flowers, ie multiples of three;

- They have thin roots and small size, therefore have short life;

- have primary growth;

- Seeds with a cotyledon (first leaves that emerge from embryos).

Examples of monocotyledonous angiosperm plants: corn, rye, wheat, grass, palm, magnolia, etc.

Dicotyledons

- have deep roots;

- Have leaves with presence of ribs;

- seeds with two cotyledons;

- secondary growth

- Have a longer life cycle than monocotyledons;

- Some species have woody stem;

- Have multiple flowers of four or five.

Examples: ipê, rosewood, roses, beans, string beans, legumes, etc.

Curiosities:

- There are about 230,000 species of angiosperm plants in the wild.

- About 65% of angiosperms are dicotyledons.

Scientific classification

Kingdom: Plantae

Superdivision: Spermatophyta

Division: Magnoliophyta or Angiospermae