1b. ssp. asplenioides (Michx.) Hultén (southern lady fern)
Pl. 4c,d
A. filix-femina var. asplenioides (Michx.) Farw.
A. asplenioides (Michx.) Desv.
Petiole scales light brown to brown. Leaf blades ovate to lanceolate, broadest
near the base, only the basal 1–2 pairs of pinnae somewhat shorter, the
rachises and midribs usually glabrous. Spores brown to dark brown. 2n=80.
June–October.
Mostly south of the Missouri River (eastern U.S.
west to Oklahoma).
This subspecies is the more common of the two in Missouri.