1. By: Ashley Martin Adapted by Valerie Hunt
Parts of a Flower
By: Ashley Martin
Adapted by Valerie Hunt

2. What is a flower?
A flower is the reproductive structure of an angiosperm or flowering plant.

3. What are the 4
main parts of a flower?
calyx
corolla
stamen
pistil

4. Calyx
The calyx is the outer protection of the flower. It is made of the sepals and receptacle.
sepals
Calyx
receptacle

5. Corolla
The corolla is usually the most obvious part of the flower—the petals. Often scented and colorful, the petals attract pollinators to the flower.

6. Stamen (Male)
The stamen is the male part of the flower and is usually located inside the petals. The stamen is composed of an anther and a filament.
Anther – holds the pollen which contains the sperm cells.
Filament- Thread-like part that supports the anthers

7. Pistil (Female)
The carpel is the female part of the flower and is usually located in the center of the flower. The carpel is composed of a stigma, style, ovary, and ovules.
Many flowers have only one carpel. But some have many. The collective term for the carpels of a flower is pistil.

8. The Pistil (female) Is the female part of the flower
Can be a single pistil consisting of several fused carpels (A)
May contain several pistils each consisting of a single carpel (B)
Contains the stigma, style, ovary and ovules.

9. Parts of the Pistil
Stigma – The sticky surface at the top of the pistil which is the site where pollen is trapped and held.
Style – The tube-like structure that supports the pistil
Ovary– At the base of the pistil, contains the ovules, or the eggs of the plant.

10. What are the parts of a flower?
Stamen
Pistil
(Carpel)
Ovule
Corolla
Calyx

11. Scientists classify a flowers based on these four basic parts of the flower—Calyx, corolla, stamen, and pistil.
COMPLETE flower
four parts: calyx, corolla, stamen and pistil
INCOMPLETE flower
Lacks any of the four parts

12. And… PERFECT flower IMPERFECT flower
Has a pistil and a stamen—male and female
Male + Female = “A Perfect Marriage”
IMPERFECT flower
Has just a pistil or a stamen but NOT both.

13. True or False Test
Can a flower be…
Perfect and complete?
TRUE
Perfect and incomplete?
Imperfect and complete?
FALSE
Imperfect and incomplete?

14. What are the parts of a flower?
Stamen
Pistil
(Carpel)
Ovule
Corolla
Calyx
Click on the flower to hear a little review song.

15. The End!
Let’s illustrate the “Parts of the Flower” song!