How do fern spores spread to new habitats?

Ferns primarily spread to new habitats through the dispersal of spores. These spores are produced in specialized structures called sporangia, which are often clustered in groups known as sori on the undersurfaces of the fern's fronds.12

Once the spores are mature and released from the parent sporophyte, they are carried by wind currents to new locations. If a spore lands in an environment with suitable conditions—typically characterized by shade, humidity, and minimal competition—it germinates to form a gametophyte, also known as a prothallium. This sexual phase of the life cycle allows the fern to establish itself in a new area, extending the plant's geographic range. While many ferns also reproduce vegetatively through rhizomes, the sexual cycle involving spore dispersal is the primary mechanism for invading and colonizing new habitats.321