Common oak fern on Little Si - Flickr - brewbooks
![Image of Polypodiopsida](https://beta-repo.eol.org/data/media/63/f6/d9/509.b7b34a2bb773c3905a35dd92b4de7cca.580x360.jpg)
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Summary[edit] Description: I believe this is Dryopteris expansa based on ID help on iNaturalist and looking at Burke Museum Herbarium images biology.burke.washington.edu/herbarium/imagecollection.ph.. Originally thought this was Gymnocarpium dryopteris (Common oak fern ) not certain. Little Si at elevation about 350 meters (1150 feet) IMG_20160421_174558. Date: 21 April 2016, 17:45. Source: Common oak fern on Little Si. Author: brewbooks from near Seattle, USA. Camera location 47° 30′ 03.02″ N, 121° 45′ 18.18″ W : View all coordinates using: OpenStreetMap - Google Earth: 47.500838; -121.755050.
Included On The Following Pages:
- Life
- Cellular
- Eukaryota (eukaryotes)
- Archaeplastida (plants)
- Chloroplastida
- Streptophyta
- Embryophytes
- Tracheophyta (vascular plants)
- Polypodiopsida
- Polypodiales
- Dryopteridaceae (wood ferns)
- Dryopteris (woodfern)
- Dryopteris expansa (spreading woodfern)
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