Athyrium alpestre var. americanum Alpine Lady-fern ID: 9092 3191 3542 0118 [detail] Steven Kaune © 1999 California Academy of Sciences

Athyrium alpestre var. americanum American Alpine Lady-fern ID: 0000 0000 1101 0283 [detail] © 1995 John Game

Athyrium alpestre var. americanum ID: 0000 0000 0806 0902 [detail] © 2006 Patrick Alexander

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