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Toothed spleenwort
Asplenium dentatum
Aspleniaceae
 

Copyright by: Jennifer Possley
In habitat, Matheson Hammock Park, 2006

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations.

Ecological Restoration Notes: Limited to exposed moist limestone in rockland hammocks with constantly high humidity. The lowered water table in South Florida make this a difficult species to incorporate into restoration projects.

Availability: Grown by enthusiasts.

Description: Small herbaceous fern.

Dimensions: Pendent, the leaves about 2-6 inches in length. Spreading across the limestone and forming small or sometimes large colonies.

Growth Rate: Slow.

Range: Miami-Dade, Broward and Palm Beach Counties; West Indies and Central America. Rare north of the Miami River. In Broward County, know only from Fern Forest Nature Center.

Map of select IRC data from peninsular Florida.

Habitats: Rockland hammocks.

Soils: Moist limestone rock, with or without an accumulation of humusy material.

Nutritional Requirements: Moderate; can grow in nutrient poor soils, but needs some organic content to thrive.

Salt Water Tolerance: Low; does not tolerate flooding by salt or brackish water.

Salt Wind Tolerance: Low; salt wind may burn the leaves.

Drought Tolerance: Low; requires moist to wet soils and is intolerant of long periods of drought.

Light Requirements: Light shade to moderate shade.

Flower Color: N/A.

Flower Characteristics: There are no flowers; the plants reproduce by spores.

Flowering Season: All year.

Fruit: Inconspicuous spores.

Horticultural Notes: Can be grown from spores. Very difficult to grow.

Comments: It is listed as endangered by the state of Florida.


Copyright by: Jennifer Possley
In habitat, Matheson Hammock Park, 2006

Copyright by: Jennifer Possley
In habitat, Matheson Hammock Park, 2006

Copyright by: James Johnson
Miami-Dade County, 2013

Copyright by: Keith A. Bradley


Other data on Asplenium dentatum available from:



 
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