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Toothed spleenwort
Asplenium dentatum
Aspleniaceae


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.
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.


 


Jennifer Possley
In habitat, Matheson Hammock Park, 2006
Jennifer Possley
In habitat, Matheson Hammock Park, 2006
James Johnson
Miami-Dade County, 2013
Keith A. Bradley