Description: English: Frond of mountain wood fern (Dryopteris campyloptera), showing prominent basiscopic basal pinnules offset from accompanying acroscopic pinnules. Taken in Windham County, Vermont. Date: 10 August 2013, 15:59:16. Source: Own work. Author: Choess. Other versions: : This file has been extracted from another file: Dryopteris campyloptera frond.JPG : .