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
- smoke bush any of various shrubs of the genus Conospermum with panicles of mostly white woolly flowers
- angiospermous yellowwood any of various angiospermous trees having yellow wood
- ginkgopsida ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta
- spermatozoid a motile male gamete of a plant such as an alga or fern or gymnosperm
- family bennettitaceae a family of fossil gymnospermous plants of the Carboniferous