FNPS Plant Database

Asplenium spp.

spleenwort

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Nomenclature

Common Name:

spleenwort

Synonym(s):

Asplenium abscissum, Asplenium platyneuron, Asplenium heterochroum, Asplenium heteroresiliens, Asplenium xheteroresiliens

Genus species:

Asplenium spp.

Family:

Aspleniaceae

Plant Specifics

Form:

fern

Size:

Most 0.5-1 ft tall, most up to 1 ft wide

Life Span:

short-lived perennial

Flower Color:

Fruit Color:

Phenology:

evergreen

Noted For:

Interesting Foliage

Landscaping

Recommended Uses:

Retain and treasure if already present. Spleenworts can be used in rock gardens where they grow well on limestone boulders. Many will also do well on logs. A few (such as Asplenium abscissum) can be grown as groundcovers.

Considerations:

Availability:

Specialty Providers

Propagation:

Division or spores. Osorio (2001) indicated that this species has no vegetative spread and that it very rarely spreads from spores. Treasure it if you have it.

Light:

Shade

Moisture Tolerance:

Always Flooded------------------------------------------------Extremely Dry

--| <----------------->

Usually moist, occasional inundation ---to--- Not wet but not extremely dry

Salt Water Flooding Tolerance:

Not salt tolerant of inundation by salty or brackish water

Salt Spray/Salty Soil Tolerance:

Low/no tolerance of salty wind or direct salt spray

Soil or Other Substrate:

Loam, Lime Rock, Sand

Soil pH:

High for rockland species.

Suitable to Grow In:

9A, 9B, 10A, 10B

USDA zones are based on the average annual extreme minimum winter temperature.



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Ecology

Wildlife:

Native Habitats:

Around sinkholes and on rocks. Epiphytic on logs and trees. Moist sites.

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

Many spleenworts are rare. Please do not harvest from the wild. Most spleenworts have very narrow ranges and narrow environmental tolerances. Don't confuse with the invasive tuberous sword fern Nephrolepis cordifolia--if the fern spreads via rhizomes and is abundant, it's probably the sword fern.

Citations:

Huegel, Craig N. 2012. Native Wildflowers and Other Ground Covers for Florida Landscapes. University Press of Florida, Gainesville.


Osorio, Rufino. 2001. A Gardener's Guide to Florida's Native Plants. University Press of Florida, Gainesville.


Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2021. Atlas of Florida Plants. https://florida.plantatlas.usf.edu/ , accessed 2025. Institute for Systematic Botany, University of South Florida, Tampa.

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