3. Flowers
Can either be:
- Complete – consists of sepals, petals,
stamens and pistil
- Incomplete – lacks one or more of the
structures.
Therefore a complete flower consists of two
different parts:
- Vegetative part
- Reproductive part
5. Vegetative parts of a flower
• Petals: bright – coloured part that
attracts bees, insects and birds.
Petals help us to differentiate one
flower from another.
• Sepals: green coloured part beneath
the petals to protect rising buds.
6. Reproductive Parts of a
Flower: Stamens
• The stamens are
the male part of the
flower.
• The plant makes
pollen in the part
of the stamen
called the anther.
stamen anther
11. Stigma
• The stigma is the
top of the female
part of the flower.
• Pollen from another
flower collects on
the stigma’s sticky
surface.
• Found at the end of
the pistil
13. • Part of the
pistil that
contains the
ovules
The Ovary
14. The Ovary
• The ovary
protects the
ovules.
• Pollen travels to
the ovules and
fertilization takes
place.
• Now the ovules
will develop into
seeds.
pollen
ovule
ovary
15. Ovule
• The part of the
flower in which
the eggs are
produced and
seeds develop
16. E.g. Floral structure of Maize (Zea mays) A
cross pollinated crop
- Floral biology
• It is monoecious plant bearing male flowers
growing at the tip as tassel and female
flowers at the axial of the leaf on the shoot.
• The tassel is terminal with staminate flowers
in several roots.
• The pollens remain viable for 18 to 24 hours.
• The female inflorescence is a spadex known
as cob or ear.
18. Write the correct words in the boxes:
stamen, stigma, petals, ovary, ovules, pollen,
sepals, anther.
1. The male
part of the
flower
4. This is where
pollen is made
5. Insects carry
this from flower
to flower
2. These
attract
insects
3. This is the
female part of the
flower, which
receives the pollen
7. These become
seeds after
fertilization
8. This is where
the seeds will grow
6. These
protect the
flower before
it opens
