About Asplenium viride Huds.
Asplenium viride Huds. is a species of fern commonly called green spleenwort, named for its green stipes and rachides. This green coloration easily distinguishes it from the very similar-looking maidenhair spleenwort, Asplenium trichomanes.
Asplenium viride is a native species found in northern and western North America, as well as northern Europe and Asia. It is a small rock fern that grows on calcareous rock. This species is diploid with a chromosome count of n = 36, and it hybridizes with Asplenium trichomanes to produce the hybrid Asplenium × adulterinum, which has been found on Vancouver Island, British Columbia.
