Flowering Plant

The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. The flowering plants and the gymnosperms comprise the two groups of seed plants. The flowering plants are distinguished from other seed plants by a series of apomorphies, or derived characteristics.

The complete, up-to-date and editable article about Flowering Plant can be found at Wikipedia: Flowering Plant
http://en.wikipedia.org/wiki/Flowering_plant