Jepson eFlora: Taxon page
Vascular Plants of California
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Asplenium septentrionale

Higher Taxonomy
Family: AspleniaceaeView Description 
Habit: Rhizome-scale cells with lateral walls dark brown to +- black, surficial walls clear. Leaf: stipe ×-section with 1 X-shaped or 2 back-to-back C-shaped vascular strands; segment veins generally free. Sporangia: in linear [to oblong] sori along veins; indusia linear, opening away from veins; stalk cells in 1 row; spores elliptic, winged.
Genera In Family: 1 or 2 genera (most segregates now subsumed in Asplenium), 700 species: worldwide, especially tropics.
eFlora Treatment Author: Alan R. Smith
Scientific Editor: Thomas J. Rosatti.
Genus: AspleniumView DescriptionDichotomous Key

Habit: Plant in soil or on rocks; rhizome generally short-creeping to erect. Leaf: often tufted, generally glabrous; rachis often +- winged; blade simple or 1[many]-pinnate or forked; pinnae often more developed acroscopically, often without obvious midrib. Sporangia: indusia persistent, covering sori when young, later reflexed.
Etymology: (Greek: spleen)
Asplenium septentrionale (L.) Hoffm.
Leaf: simple or 1--2-forked, many, densely clustered, 5--15 cm, grass-like; stipe 2.5--12 cm, +- 0.5 mm wide, unwinged, red-brown at base, +- green above, dull; blade generally 1--2 mm wide, narrowly linear, sometimes with small, +- linear, generally sterile teeth near or at tip. Sporangia: sori 5--15 mm, generally 1 per segment but sometimes appearing to have as many as 4, corresponding to generally the same number of teeth per segment. Chromosomes: 2n=144.
Ecology: Crevices of granite rocks; Elevation: 2500--3350 m. Bioregional Distribution: CaRH, s SNH; Distribution Outside California: to Oregon, South Dakota, Texas, northern Baja California; also West Virginia, Europe, Asia.
Jepson eFlora Author: Alan R. Smith
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Asplenium
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Botanical illustration including Asplenium septentrionale

botanical illustration including Asplenium septentrionale


Citation for this treatment: Alan R. Smith 2012, Asplenium septentrionale, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 17, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on February 17, 2019.

Asplenium septentrionale
click for enlargement
© 2018 Dana York
Asplenium septentrionale
click for enlargement
© 2013 Dana York
Asplenium septentrionale
click for enlargement
© 2018 Dana York
Asplenium septentrionale
click for enlargement
© 2013 Dana York
Asplenium septentrionale
click for enlargement
© 2013 Dana York
Asplenium septentrionale
click for enlargement
© 2018 Dana York

More photos of Asplenium septentrionale in CalPhotos

Geographic subdivisions for Asplenium septentrionale:
CaRH, s SNH;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.