Author | Wherry | |
Distribution | A sterile hybrid between A. montanum and A. pinnatifidum. Weakley (2022) has moved it from Asplenium x trudellii to Asplenium trudellii (see Taxonomic Comments). Apparently only in the Mountains, based on his map, but the website editors can find no collections in SERNEC to document this.
"N. NJ, sw. PA, s. OH, and s. IL south to w. NC, c. GA, n. AL; recently located west of the Mississippi River in Baxter County, n. AR" (Weakley 2022). | |
Abundance | Apparently very rare, if truly present in the state. | |
Habitat | "Moist outcrops of felsic sedimentary or metamorphic rocks, such as sandstone, phyllite, schist, at low elevations" (Weakley 2022) | |
Phenology | May to October. | |
Identification | Similar to A. pinnatifidum, but A. trudellii has leaves that are pinnate instead of pinnatifid in that species. | |
Taxonomic Comments | "There is direct evidence that it can produce fertile spores. Moreover, it is additionally considerably more common than most other sterile Asplenium hybrids, sometimes occurring without one or both parents, suggesting that it may be able to disperse independently. I therefore treat it as a species of hybrid origin, rather than a sterile hybrid, and omit the "hybrid ×" from its name." (Weakley 2022).
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Other Common Name(s) | None | |
State Rank | HYB [SR] | |
Global Rank | GNA | |
State Status | | |
US Status | | |
USACE-agcp | | |
USACE-emp | | |