单词：gymnocalycium 

名词

• 
  [1.n.gymnocalycium] (同义词:[Gymnocalycium]  [genus_Gymnocalycium]  )
• 
  注释列句：large genus of low-growing globular South American cacti with spiny ribs covered with many tubercles
• 上位词 -> [caryophylloid_dicot_genus]  [dicot_genus]  [genus( n. 种, 类 )]  [taxonomic_group]  [biological_group]  [group( n. 团体, 组, 团, 群, 批, [地]界, [化]基 v. 聚合, 成群 )]  [abstraction( n. 提取 )]  [entity( n. 实体 )] 
• 成员总称 -> [Cactaceae] 
  所有总称 -> [Cactaceae]