Gymnocarpium dryopteris
| Gymnocarpium dryopteris | |
|---|---|
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| Conservation status | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Pteridopsida |
| Order: | Polypodiales |
| (unranked): | Eupolypods II |
| Family: | Cystopteridaceae |
| Genus: | Gymnocarpium |
| Species: | G. dryopteris |
| Binomial name | |
| Gymnocarpium dryopteris (L.) Newman |
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| Synonyms | |
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Dryopteris dryopteris (L.) Britton |
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Gymnocarpium dryopteris (Western Oakfern, Common Oak Fern or Northern Oak Fern) is a fern of the family Polypodiaceae.
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[edit] Description
Gymnocarpium dryopteris has small, delicate fronds with ternately-compound pinnae (leaves). Fronds occur singly. On the underside of matured pinnae naked sori can be found.
[edit] Distribution
Common in the Canadian forests and the Northwestern United States. It is also found in Scotland and Scandinavia, Finland, and Russia.[1][2] Its name is debated also as gymnocarpium dysjunctum. Oakfern may be a translation of dryoteris.
This species, a forest understory plant, is not found in association with Quercus (oak).[3][4]
[edit] References
- ^ "Gymnocarpium dryopteris". WTU Herbarium Image Collection. Burke Museum, University of Washington. http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Gymnocarpium&Species=dryopteris. Retrieved 2009-12-20.
- ^ "Gymnocarpium dryopteris (L.) Newman". PLANTS Profile. United States Department of Agriculture; Natural Resources Conservation Service. http://plants.usda.gov/java/profile?symbol=GYDR. Retrieved 2009-12-20.
- ^ Plants of the Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska, Written by Paul Alaback, ISBN 978-1-55105-530-5
- ^ Pojar, Jim; Andy MacKinnon (1994). Plants of the Pacific Northwest. Lone Pine Publishing. p. 423. ISBN 1-55105-042-0.
[edit] External links
Media related to Oak Fern at Wikimedia Commons
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