gymnosperm
noun [ C ] biology specialized uk/ˈdʒɪm.nə.spɜːm/ us/ˈdʒɪm.nə.spɝːm/
裸子植物
any plant of a group of plants that produce seeds but no flowers, including conifers and cycads
Gymnosperms grow only from seeds without the protective case. 裸子植物只能从没有保护壳的种子开始生长。
Plant life was mainly primitive gymnosperms, with ferns and conifers dominant.
It's a deciduous gymnosperm, originally from China.
- More examples
- In gymnosperms, the seeds lie exposed on the cone scales.
- Only conifers, cycads, ferns, and horsetails today are gymnosperms.
- Early gymnosperms were abundant during the Carboniferous period.
- The redwood is a conifer whose ancient lineage connects it to the gymnosperms alive when dinosaurs still roamed our world.