Fern - Wikipedia, the free encyclopedia

Fern - Wikipedia, the free encyclopedia

瀏覽:1076
日期:2024-07-12
A fern is any one or more of a group of roughly 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem (making them vascular plants). They have stems, ......看更多