User:MtBotany/Articles/List of ferns and fern allies of Colorado

There are species of ferns or fern allies that are recorded by botanical sources as growing in Colorado as of 2023. The table follows World Ferns for the scientific names of plants and their distribution with the exception of where Jennifer Ackerfield's Flora of Colorado is cited for information about distribution in Colorado. The state statuses are from NatureServe where available. According to Ackerfield there are no ferns or fern allies known to be introduced to Colorado.