File:Shasta Fern on Serpentine Soil - Flickr - brewbooks.jpg
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| Description |
Polystichum lemmonii the signature fern for serpentine soil Arthur Kruckeberg: "Of the western ferns on serpentine, only Polystichum lemmonii is obligate," Source Hardy Fern Library Dryopteridaceae Fern Lemmon's holly-fern, Shasta fern A serpentine soil is derived from ultramafic rocks, in particular serpentinite, a rock formed by the hydration and metamorphic transformation of ultramafic rock from the Earth's mantle. The soils derived from ultramafic bedrock give rise to unusual and sparse associations of edaphic (and often endemic) plants that are tolerant of extreme soil conditions, including: low calcium:magnesium ratio lack of essential nutrients such as nitrogen, potassium, and phosphorus and high concentrations of the heavy metals (more common in ultramafic rocks) These plants are commonly called serpentine endemics, if they grow only on these soils. (Serpentinite is composed of the mineral serpentine, but the two terms are often both used to mean the rock, not its mineral composition.) Source: en.wikipedia.org/wiki/Serpentine_soil accessed 14 Aug 2010 Trail 1226.2 Pass to Lake Ann above Esmerelda Basin Teanaway, Kittitas Co. Washington, USA On serpentine rock and soil 1900 meters 6200 feet 30 July 2010 s100730 064 |
| Date | |
| Source | Shasta Fern on Serpentine Soil |
| Author | brewbooks from near Seattle, USA |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This image was originally posted to Flickr by brewbooks at https://flickr.com/photos/93452909@N00/4890258899. It was reviewed on 27 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 03:54, 27 November 2016 | | 3,264 × 2,448 (5.25 MB) | Josve05a (talk | contribs) | == {{int:filedesc}} == {{Information |Description=[http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Polystichum&Species=lemmonii ''Polystichum lemmonii''] the signature fern for serpentine soil Arthur Kruckeberg: "Of the western... |
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