苏铁纲 meaning in Chinese
cycadopsida
Examples
- Cycadophyta ( cycads ) a phylum of cone - bearing gymnosperms ( about 75 living species ) with palmlike compound leaves and special coralloid roots at or near the ground surface , which contain symbiotic nitrogen - fixing cyanobacteria
苏铁纲(苏铁类植物) :包含球果的一类裸子植物(现存种大约有75种) ,它们具有掌状的复叶,在近地面处有特殊的珊瑚状的根,根内含有共生的固氮蓝细菌。