Jepson eFlora: Taxon page
Vascular Plants of California
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Asplenium vespertinum

WESTERN SPLEENWORT

Higher Taxonomy
Family: AspleniaceaeView Description 
Common Name: SPLEENWORT FAMILY
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


Common Name: SPLEENWORT
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 vespertinum Maxon
NATIVE
Leaf: 1-pinnate, many, clustered, 8--30 cm; stipe 1--5(8) cm, generally 0.5--1 mm wide, unwinged, dark red- to purple-brown, shiny; blade generally 1--2.5 cm wide, linear; pinnae 20--30 pairs, generally 5--12 mm, 2--8 mm wide, oblong, margin shallowly lobed or toothed +- throughout. Sporangia: sori generally 0.5--1.5 mm, generally 2--6 pairs per pinna.
Ecology: Base of overhanging boulders; Elevation: 200--1000 m. Bioregional Distribution: SCo, SnGb, PR (exc SnJt); Distribution Outside California: northern Baja California.
Jepson eFlora Author: Alan R. Smith
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Asplenium trichomanes subsp. trichomanes
Next taxon: Asplenium viride

Botanical illustration including Asplenium vespertinumbotanical illustration including Asplenium vespertinum


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Citation for this treatment: Alan R. Smith 2012, Asplenium vespertinum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=14615, accessed on September 14, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on September 14, 2024.

No expert verified images found for Asplenium vespertinum.



Geographic subdivisions for Asplenium vespertinum:
SCo, SnGb, PR (exc SnJt) 		MAP CONTROLS
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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 occurrence).






 

Data provided by the participants of the  Consortium of California Herbaria.

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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month Flowering-Fruiting Monthly Counts

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 (fruiting time in some monocot genera).