Definition that contains osperm
- tree a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
- flower reproductive organ of angiosperm plants especially one having showy or colorful parts
- bloom reproductive organ of angiosperm plants especially one having showy or colorful parts
- blossom reproductive organ of angiosperm plants especially one having showy or colorful parts
- conifer any gymnospermous tree or shrub bearing cones
- order gnetales chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms
- spermatozoid a motile male gamete of a plant such as an alga or fern or gymnosperm
- angiospermous yellowwood any of various angiospermous trees having yellow wood
- family bennettitaceae a family of fossil gymnospermous plants of the Carboniferous
- jumby bead West Indian tree similar to Ormosia monosperma but larger and having smaller leaflets and smaller seeds