planidium

例句：

1. 1.The planidium is a rare and valuable plant species.
   计划植物是一种稀有且珍贵的植物物种。
2. 2. The planidium is known for its unique flowers and leaves.
   计划植物以其独特的花朵和叶子而闻名。
3. 3.The planidium has been used in traditional medicine for centuries.
   计划植物在传统医学中被使用了几个世纪。