Alpine Ladyfern, American Alpine Lady Fern
Athyrium distentifolium ssp. americanum
Synonyms: Athyrium alpestre var. americanum, Athyrium americanum, Athyrium distentifolium var. americanum
![Alpine Ladyfern, American Alpine Lady Fern: Athyrium distentifolium ssp. americanum (Synonyms: Athyrium alpestre var. americanum, Athyrium americanum, Athyrium distentifolium var. americanum)](americanum/americanum1a.jpg)
The photo above shows alpine lady fern as seen at 6300' amongst rocks on an old moraine at the base of the Adams Glacier, Mt. Adams.........September 18, 2008.
![Alpine Ladyfern, American Alpine Lady Fern: Athyrium distentifolium ssp. americanum (Synonyms: Athyrium alpestre var. americanum, Athyrium americanum, Athyrium distentifolium var. americanum)](americanum/americanum1b.jpg)
The photo above shows a close-up of the underside of a frond of alpine lady fern as seen at 6300' on an old moraine at the base of the Adams Glacier, Mt. Adams.........September 18, 2008.
Paul Slichter