Shasta daisies are just one of thousands of species of the Asteraceae family. Like other members of the family, the Shasta daisy flower called the fact of many small florets flowers is surrounded by bracts. Within each of the Shasta daisy flowers are the reproductive organs: the stamp and the stamens.
Structure of the Shasta Daisy Flower
The white "petals" of a Shasta Daisy, the bracts that surround the true flowers in the middle. Within the yellow center of the daisy are hundreds of small tubular flowers bunched together. These flowers are used as the hard disk and flowers contain both stamens and stamp. Around the outer edge of the Shasta daisy Center are slightly different tubular flowers that only have a stamp or no reproductive parts and are sterile.
Structure of the pistil
The female portion of the floret is called the pistil. The pen has three structures: a stigma, where pollen lands, called a tube style of pollen travels down and the ovary, where pollination takes place and to develop seeds. The ovary of a Shasta Daisy has been unsuccessful, that is fused to the other parts of the flower. Unlike some plants, such as apples and peas, their ovaries produce many seeds, each ovary produces a Shasta Daisy only one seed. However, since each Shasta daisy plant has many flowers, each plant can produce more seeds.
Structure of the stamens
A stamen is the male part of the flower reproductive system. Typically, most of the flowers have several stamens. Each stamen of a pollen-bearing anther, which sits on top of a stalk called the filament. A Shasta Daisy has five stamens, but they are taken together to form a tube.
Shasta Daisy pollination
The Shasta daisy stamens mature before the stigma and the pollen falls into the tube through the fused filaments. As the style grows, it pushes through the pollen. However, the daisy is not self pollinate, because the stigma remains in style and so the flower's own pollen is simply pushed upward. Before the stigma appears pollinating insects or birds take most of the flower pollen to other plants. If it appears the stigma by pollen from another Shasta daisy pollinated. By not pollinate itself, helps maintain genetic diversity, the Shasta Daisy.