"which plant group is the largest with the most number of living species"

Angiosperms

Explanation:

Angiosperms or simply called flowering plants are the most evolved group of plants in the Kingdom Plantae. They are characterized by the ability to produce reproductive structure called FLOWER, which produces seeds. They share this seed-bearing ability with Gymnosperms but distinct in the sense that they bear theirs in enclosed structure called OVARY, which eventually becomes the fruit.

Angiosperms, which evolved from Gymnosperms, now constitutes majority of the species in the plant Kingdom with about 300,000 identified species. With this number, they are the most diverse group of plants in existence. Angiosperms exist in different life forms to adapt to their environment e.g herbs, trees, climbers, aquatic plants etc.

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