1. Any of numerous flowerless, seedless vascular plants having roots, stems, and fronds and reproducing by spores. 
   蕨，蕨类植物数量较大的有根、茎以及复叶的无花、无子管状植物，通过孢子再生
2. pertaining to flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem. 
   与生长仅发生在主干顶部的无花植物（如蕨类植物或苔藓类植物）相关的。
3. formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi. 
   以前在分类学上被公认的所有无花无核并通过诸如蕨类植物，苔藓，藻类，真菌类的孢子而繁殖的植物。
4. any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores. 
   众多无花无核有脉管的植物的任何一种，从根茎有真正的根，叶子舒展向上；由孢子繁殖。
5. used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichens. 
   仅在旧的分类中使用；包含所有被视为不开花结果的各种微生物的集合；藻类；细菌类；真菌；地衣。

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