Hundreds of years ago, no dandelions （蒲公英） grew in North America. Then people came from Europe. They had dandelion seeds on their clothes. The seeds ffrom their clothes onto the ground. Since then, dandelions have spread all over.
Most people believe that dandelions are weeds. They do not want them in their gardens. But some people think that dandelion flowers are p. And others think that dandelions taste good. They cook dandelion leaves o put them into a fresh salad. The leaves must be p before the flowers come out or they will not taste good. Some people make dandelion flowers into wine.
Dandelions do not d easily. If the winter is not very cold, their leaves may stay green.
When the spring arrives, their flowers come out. Each night their bright yellow flowers close up. When the sun s the next day, they open up a . Dandelion flowers are very u. They do not have to get pollen （花粉） from another dandelion flower in order to form seeds. So after several days, the yellow flower t white and soft. A tiny brown seed forms at the bottom of each white petal （花瓣）. When the wind blows, the petals float away.
Each white petal carries a seed away. This lets the dandelions s their seeds all over.
New dandelions grow where the seeds land.
