Page 28 - (DK) Flowers
P. 28

Floating in the wind                                                                 Blooming unnoticed                   People who suffer from hay fever are

                                                                                            Grasses have flowers, too, but
                                                                                            their flowers are often small        allergic to pollen. They suffer most in
       Not all flowers are pollinated                                                       and dull. Many are surrounded         spring and early summer, when grasses
                                                                                            by green scales, making them
       by animals. Instead, some use                                                        difficult to spot. Like all wind -    release lots of pollen into the air.
       the wind. These types of flower                                                      pollinated flowers, grasses do
       shed their pollen into the air,                                                      not need bright petals to                                         Bearded
       and the tiny grains are blown                                                        attract insects. Their flowers                                    wheat
                                                                                            grow in clusters at the top of
       far and wide. Some pollen lands                                                      tall stems. Next time you walk

       on the ground, some gets in our                                                      through a field of long grass,                Barley
       eyes and noses, and just enough                                                      watch out for puffs of pollen
                                                                                            as you brush against them.
       lands on other flowers. If you

       suffer from hay fever, you may
       know all about this.


       Stand back!
       Stinging nettle flowers shed their                                                   Grasses such as this
       pollen into the air in a special way.                                                Timothy shed their
       When the pollen grains are ripe,                                                     pollen into the air,   Wild oat
       a tiny “explosion” in each flower                                                    where it is spread
       shoots the pollen into the air.
                                                                                            by the wind.


                             Afloat in a boat
                             A few plants use water to move their pollen.
                             This is Canadian pondweed, a plant that you                       Like grasses,
                             might see in fish tanks. lt has two different                     plantain has tiny
                             kinds of flower, both on long stalks that reach                   flowers packed
                              up to the surface. The male flowers scatter                      together on top
                              their pollen over the water. Each pollen grain                   of a long stem.
                              drifts until it pollinates a female flower.


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