The angiosperms are the most recently derived plant group, originating some 160 million years ago and becoming widespread around 120 million years ago. Angiosperm means “enclosed seed,” referring to ...

What was their great innovation? Botanists call flowering plants angiosperms, from the Greek words for "vessel" and "seed." Unlike conifers, which produce seeds in open cones, angiosperms enclose ...

Seeds embody the magic of plant reproduction ...

They assume that Furcula was a relative of an extinct group of seed plants with fern-like leaves the Peltaspermales, and that ...