Flora of the Southeastern United States
2022 Edition

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ASPLENIACEAE

Asplenium Linnaeus. Spleenwort.

Key to Asplenium

A genus of about 750 species, perennials, nearly cosmopolitan. The southeastern North American flora is not especially rich in number of species, but includes a large number of the clades in the genus (Xu et al. 2019).

ID notes: Several of the more frequently encountered sterile (to partly fertile) hybrids are included in the key and treated fully below. Rarer and solely sterile hybrids may be recognized by intermediate morphology and usual co-occurrence with both parents.

Ref: Keener & Davenport (2007); Kessler & Smith (2018); Kramer & Viane In Kramer & Green (1990); Lin & Viane in FoC (2013); Moran (1982); Morzenti & Wagner (1962); Murakami et al. (1999); Taylor, Mohlenbrock, & Burton (1976); Wagner, Moran, & Werth (1993) In Flora of North America Editorial Committee (1993b); Xu et al. (2019). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Gary P. Fleming
image of plant© Edwin Bridges
image of plant© Alan M. Cressler
image of plant© Keith Bradley
image of plant© Alan Cressler: Asplenium scolopendrium var. americanum, Alabama 5 by Alan Cressler source
image of plant© Alan Cressler: Asplenium trichomanes, Cohutta Wilderness, Chattahoochee National Forest, Fannin County, Georgia 2 by Alan Cressler source