Flowers the reproductive structures of plants Original by Libby Astrachan Modified by Georgia Agriculture Education Curriculum Office- July 2004

4 parts of a plant Roots Stems Leaves Reproductive (includes flowers and fruits)

Flowers have 4 different parts Sepals Petals Stamens Pistil

Pedicel The flower stem

The place on the stem where floral organs attach and originate. Receptacle The place on the stem where floral organs attach and originate.

Sepals Usually green; leaflike structures that protect the flower, as it forms and emerges.

Sometimes sepals are colorful

Calyx The group of sepals on a flower

Petals Located just inside the sepals Leaf-like and often very colorful Attract pollinators

The collection of petals on a flower Corolla The collection of petals on a flower

Perianth The sepals and the petals of a flower. (Not the reproductive parts.)

Tepals When there is no clear distinction between the sepals and the petals...they are called “tepals”.

The reproductive parts Found at the center of the flower

Stamens Male reproductive parts of a flower Arranged around the female parts

Anther Part of the stamen Produces and holds pollen

Stalk that holds up the anther Filament Stalk that holds up the anther

The female part of the flower Pistil The female part of the flower

Stigma Found at the end of the pistil Has a sticky surface to catch pollen

Style The neck of the pistil

Ovary Part of the pistil that contains the ovules

Ovule The part of the flower in which the eggs are produced and seeds develop

Sepals, petals, stamens and pistil Complete flowers Have all 4 basic parts: Sepals, petals, stamens and pistil

Incomplete flowers Flowers that are missing one of the four basic parts

Flowers that have both male and female parts Perfect Flowers Flowers that have both male and female parts

Flowers that lack one of the sex structures Imperfect flowers Flowers that lack one of the sex structures