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Flowers
the reproductive structures of
plants
Original by Libby Astrachan
Modified by Georgia Agriculture Education Curriculum Office- July 2004
August 2008
4 parts of a plant
•
•
•
•
Roots
Stems
Leaves
Reproductive
(includes flowers
and fruits)
August 2008
Flowers have 4 different parts
• Sepals
• Petals
• Stamens
• Pistil
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Pedicel
• The flower stem
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Receptacle
• The place on the stem where floral organs
attach and originate.
August 2008
Sepals
• Usually green; leaflike structures that
protect the flower, as it forms and
emerges.
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• Sometimes sepals are colorful
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Calyx
• The group of sepals on a flower
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Petals
• Located just
inside the sepals
• Leaf-like and
often very
colorful
• Attract
pollinators
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Corolla
• The collection of petals on a flower
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Perianth
• The sepals and
the petals of a
flower. (Not the
reproductive
parts.)
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Tepals
• When there is no
clear distinction
between the
sepals and the
petals...they are
called “tepals”.
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The reproductive parts
• Found at the center of the flower
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Stamens
• Male reproductive parts of a flower
• Arranged around the female parts
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Anther
• Part of the
stamen
• Produces and
holds pollen
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Filament
• Stalk that holds up the anther
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Pistil
• The female part of the flower
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Stigma
• Found at the end
of the pistil
• Has a sticky
surface to catch
pollen
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Style
• The neck of the
pistil
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Ovary
• Part of the
pistil that
contains the
ovules
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Ovule
• The part of the
flower in which
the eggs are
produced and
seeds develop
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Complete flowers
• Have all 4 basic parts:
• Sepals, petals, stamens and pistil
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Incomplete flowers
• Flowers that are
missing one of
the four basic
parts
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Perfect Flowers
• Flowers that have both male and female
parts
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Imperfect flowers
• Flowers that lack one of the sex
structures
August 2008