what is angiosperm

Angiosperms, also known as flowering plants, are a group of plants that produce flowers and bear their seeds in fruits. They are the largest and most diverse group within the kingdom Plantae, with about 300,000 species. Angiosperms represent approximately 80 percent of all known living green plants. They are vascular plants, meaning they have stems, roots, and leaves. Unlike gymnosperms such as conifers and cycads, angiosperms seeds are found in a flower. The flowers of angiosperms have male or female reproductive organs, and pollination is necessary for reproduction. Angiosperms are highly variable in form, including herbs, shrubs, trees, vines, and succulents, and they occur in a great many habitats, from forests, grasslands, and deserts, to aquatic and marine environments. Angiosperms also comprise the vast majority of all plant foods we eat, including grains, beans, fruits, vegetables, and most nuts.