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Biological Environment > Grasses |
Earth Earlier Earlier 50 Million Years ago Later Earth After |
This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand. |
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Plants were also evolving quickly. Small fruiting plants called grasses, with wind-pollinated flowers and long thin leaves, began to spread. They could live in cooler drier places than other plants, and the climate just happened to be changing in that direction.
Grasses belong to a group of fruiting plants called monocotyledons, so called because they have only one seed leaf, or cotyledon, in the embryo contained in the seed. This group of plants includes lilies, orchids, palms and irises as well as the grasses. Contrast this with the other main group of fruiting plants - the dicotyledons. They are typically herby types of plants. Their leaves usually have parallel veins. |
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Earth Earlier Earlier 50 Million Years ago Later Earth After |
Biological Environment > Grasses |
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Basic Information |
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