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FLOWERS
• About 80% of all plants are angiosperms
(flowering plants).
• Flowering plants are efficient food makers,
tough, fast growing, and good at producing
offspring.
• Flowers are the reproductive parts of the
plant
Complete Flowers
• Have all 4 main parts
• Petals – brightly colored outer part of the
flower
• Sepal cover and protect the flower when it is a
bud
• Stamen – male part of the flower
• Pistil – female part of the flower
Male flower parts
• Stamen – made of a filament and anther
• Filament is the long, thin stalk portion
• Anther is the top of the filament which
produces the pollen
Female Flower Parts
• The pistil is made of the stigma,
style, and ovary.
• Stigma is the opening at the
top of the pistil.
• The style is the long tube-like
structure that leads to the
ovary.
• The ovary contains the egg
cells. Fertilization occurs here.
Incomplete Flowers
• An incomplete flower is missing one or more
of the four main parts.
Perfect vs Imperfect Flowers
• Perfect flowers have both stamen and pistil
(male and female parts).