Download - SEED DISPERSAL
SEED DISPERSAL
- Traveling to survive
SOME ARE
DREAMING OF WIND
COTTON
MAPLE
SPIRALLING ITS WAY DOWN…
DANDELION
ON FEATHERY WINGS…..
A PARACHUTE
RAGWORT Feathery hairs help the
seed to float on the wind.
WINGED SPINNERS
SYCAMOREWing-like outgrowths make it spin as it
falls from the parent plant. This spinning delays its fall so that the wind may carry it
some distance away.
AND SOME ARE
FLOATING AWAY
COCONUT
ON A LONG VOYAGE………
.........TO ANOTHER SHORE
POND IRIS
The seed pods break open when they ripen. Those which fall into the water float away.
LOTUS SEED
WAITING FOR A FREE RIDE
- SPEAR GRASS
XANTHIUM
THE SPINY BEAUTY
DEVIL’S CLAW
BURDOCK
BURR
OFFERING THEMSELVES TO ANIMALS
BERRIES They are eaten by birds, mice, deer and even foxes.The seeds are expelled in the
droppings of the animal.
EXPLOSIVE DISPERSAL
PEAS They produce seed pods which dry in the sun and
explode
RUPTURED SEED PODS
THE 'PEPPER-POT'
RED CAMPIONThe containers are shaken by the
wind, scattering the seeds through the openings
GORSE
FIRING LIKE A GUN
BALSAM
STAGES OF GERMINATION
THANKS