Asplenium rhizophyllum is a very distinctive species in
our area. The simple leaves are often long-tapering to the tips
and if a leaf tip falls on a moist surface, it can generate roots
and a new plant, thereby allowing the ferns to "walk"
over the surface of the moss-covered rocks. Notice the developing
roots at the tips of several fronds in the photo at upper left.
Sori are elongate and irregularly
located on the blades.
Asplenium rhizophyllum is usually found in moist shady
sites on limestone. The range in Wisconsin is mostly southern
and near the Mississippi River from Pierce to Polk Counties, plus
the Door peninsula. Asplenium rhizophyllum was long known
as Camptosorus rhizophyllum and many fern books use that