type genus of Cycadaceae: genus of widely distributed Old World evergreen tropical trees having pinnate leaves and columnar stems covered with persistent bases of old leaves
例句
用作名词 (n.)
Here sago cycas trees blossom once every year. 在这里,铁树一年一开花。
The Main Disease and Pest Control Countermeasures of Cycas spp. 苏铁主要病虫害及其防治对策。
Chemical control technique of stem-bulb rot caused by Fusarium solani in Cycas sp. 苏铁镰刀菌球茎腐烂病化学防治技术研究。