Athyrium angustum (Willdenow) C. Presl. Section: Athyrium. Common name: Northern Lady Fern. Phenology: Jun-Sep. Habitat: Moist forests, rock outcrops on grassy balds at high elevations. Distribution: NL (Newfoundland) and n. QC west to SK, south to VA, w. NC, e. TN, OH, MO, and AR (Peck 2011).
Origin/Endemic status: Native
Taxonomy Comments: We need to more carefully study the plants ascribed to A. angustum in the Roan Mountain massif and other high elevation areas in the Southern Appalachians; they may represent an undescribed (or currently unrecognized) entity.
Other Comments: The occurrence of this northern species is not fully documented in NC or VA; it was found in the 1980s by Murray Evans on Hump Mountain, on or near the TN-NC border.
Synonymy ⓘ: = K4, NE, NY, POWO, Sf, Tat, WV; Aspidium angustum Willd.; = Athyrium filix-femina (L.) Roth ex Mert. ssp. angustum (Willd.) Clausen — Il, Mo1, NS, Tn, W; = Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G.Lawson — Can, FNA2, GrPl, Pa; = Athyrium filix-femina (L.) Roth ex Mert. var. michauxii (Spreng.) Farw. — C, F, G; = n/a — RAB; < Athyrium filix-foemina (L.) Roth — S13. Basionym: Aspidium angustum Willd. 1810
Links to other floras: = Athyrium filix-femina var. angustum - FNA2
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC
- Eastern Mountains and Piedmont: FAC
- Great Plains: FAC
- Midwest: FAC
- Northcentral & Northeast: FAC
Heliophily ⓘ: 4
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© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷Feedback
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