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Northern Spleenwort Back to Plant Page
Asplenium septentrionale
  
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About Northern Spleenwort (Asplenium septentrionale) Asplenium septentrionale is a species of fern known by the common names northern spleenwort and forked spleenwort. It is native to western North America, Europe, and Asia, where it grows on rocks. Its long, slender leaves give it a distinctive appearance, more like a grass than a typical fern. Three subspecies exist, corresponding to a tetraploid and a diploid cytotype and their triploid hybrid. Asplenium septentrionale subsp. septentrionale is found in Europe and Asia from the Macaronesian Islands east through Europe, western Asia, the former USSR, northern India, parts of western and central China (Xinjiang, Tibet, and Shaanxi), and Taiwan. It is also found in North America, principally in the Rocky Mountains of the western United States, but also in the Black Hills of South Dakota - Wyoming. It also occurs in the mountains of the Cascade Range and the Sierra Nevada, from Oregon south through California into Baja California. Populations occur to the eastward in western Texas and near the tip of the Oklahoma Panhandle, and two very disjunct stations have been located on shale in Monroe County and Hardy County, West Virginia. Asplenium septentrionale is a small fern which grows in dense clusters superficially resembling tufts of grass. The long, dark stems support narrow, leathery leaf blades, which may appear slightly forked at the tip.
Plant Description
Plant Type
Fern

Native Status
Native - Rare

Natural Setting
Elevation ?
5458' - 10998'

Annual Precip. ?
40.9" - 74.0"

Summer Precip. ?
1.66" - 3.00"

Coldest Month ?
23.9° F - 33.2° F

Hottest Month ?
46.4° F - 59.4° F

Humidity ?
1.25 vpd - 14.94 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Forked Spleenwort

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Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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