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Classifying Plants
Classify: to sort into groups
S5L1: Students will classify organisms
into groups and relate how they
determined the groups with how and
why scientist use classification.
b. Demonstrate how plants are
sorted into groups.
One Way to Group Plants
Vascular Plants
Nonvascular Plants
• Vascular: means having tubes. Vascular plants
have tubes that carry water from the roots
to the leaves. They have other tubes that
carry food from the leaves to the rest of the
plant.
• When the weather is very dry, plants use up
the water in their tubes. After this water is
gone, their stems get limp and the plants wilt.
• Nonvascular: means does not have
tubes. These plants soak up water and
food from the soil, like sponges. They
are smaller plants because much of the
plant has to be touching the soil.
Fungi
• Instead of producing their own food
from sunlight, fungi get their food from
dead plants and animals.
• Fungi break these dead things into tiny
pieces and then they soak up the food
into pieces.
• Examples: mushrooms, yeast, and
mold.
• Fungi does not make it’s own food.
Another Way to Group Plants
• Plants can be grouped by the way that
they produce new plants (or reproduce).
– By producing seeds or cones
– By producing spores
– By growing from a part of the parent plant
By producing seeds or cones
• Plants that produce seeds first produce flowers with pollen in
them.
• Pollen is a special dust that helps plants reproduce. Birds,
bees, and the wind carry the pollen from one flower to another.
• Flowers that receive pollen then produce seeds.
• Some flowering plants also produce fruit.
• Pine trees produce cones but no flowers. These cones contain
pollen.
By producing spores
• Some plants do not produce flowers, pollen, seeds, or
cones…they produce spores.
• A spore is a tiny cell that can grow into a plant.
• Spores drop off the plant into the soil and then begin
to grow.
• Spores need to land on very moist soil.
By growing from a part of the parent plant
• Some plants can reproduce in 2 ways: they can grow
from seeds or from a part of a parent plant.
• Example: a new potato plant can grow from seeds of
from the “eye” of a potato.
• Strawberry plants and some kinds of grass send out
runners.
In which two groups does moss belong?
a)
b)
c)
d)
Vascular and seed-producing
Vascular and spore-producing
Nonvascular and seed-producing
Nonvascular and spore-producing
Why is a fern a vascular plant?
a) It has tubes inside its leaves and stems
b) It has no tubes inside its leaves and
stems
c) It grows from spores
d) It grows from seeds
Do spore-producing plants need birds
and bees to help them reproduce?
a) Yes, because birds and bees help
spread their pollen.
b) No, because they have no pollen to
spread.
c) Yes, because they have no flowers.
d) No, because they have no cones.
Which statement is TRUE?
a) The biggest plant is nonvascular.
b) The biggest plants reproduce by
spores.
c) All plants use pollen or cones to
reproduce.
d) All plants must reproduce to survive.
In which 2 groups does a cherry
tree belong?
a)
b)
c)
d)
Vascular and seed-producing
Vascular and spore-producing
Nonvascular and seed-producing
Nonvascular and spore-producing
Why are fungi nonvascular plants?
a) They have tubes inside their leaves and
stems.
b) They have no tubes inside their leaves and
stems.
c) They grow from spores.
d) They grow from seeds.
What do you know about this
plant (based on the picture)?
a)It is nonvascular
b)It reproduces by spores
c)It reproduces by runners
d)It reproduces by seeds