A fern is a member of a group of vascular plant that reproduce via spores and have ...

... neither seeds nor flowers. They differ from mosses by being vascular, i. e., having specialized tissues that conduct water and nutrients and in having life cycles in which the sporophyte is the dominant phase..( Google is the key to know)
"Pako Salad with Salted Egg."
by MhadzicalChef Pa Tsamba.