pteridophytes

蕨类植物门的植物,简单维管植物,通过孢子而非种子繁殖,具有二倍体与单倍体世代交替,二倍体通常较大且更显著。

Any plant of the division Pteridophyta, of simple vascular plants that reproduce via spores rather than seeds and that alternate generations of diploid (sporophyte) and haploid (gametophyte or prothallus) forms, the diploid generally being larger and more conspicuous.