Toothed spleenwort
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Asplenium dentatum
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Aspleniaceae
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Landscape Uses:
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Primarily recommended for natural landscapes and habitat restorations. |
Ecological Restoration Notes: |
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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: |
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Grown by enthusiasts. |
Description: |
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Small herbaceous fern. |
Height: |
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Pendent, the leaves about 2-6 inches in length. Spreading across the limestone and forming small or sometimes large colonies. |
Growth Rate: |
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Slow. |
Range: |
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Miami-Dade, Broward, and Palm Beach counties, and disjust to Volusia County where first collected in 2008; West Indies and Central America. Extremely rare north of the Miami River. |
Habitats: |
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Rockland hammocks. |
Soils: |
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Moist limestone rock, with or without an accumulation of humusy material. |
Nutritional Requirements: |
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Moderate; can grow in nutrient poor soils, but needs some organic content to thrive. |
Salt Water Tolerance: |
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Low; does not tolerate flooding by salt or brackish water. |
Salt Wind Tolerance: |
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Low; salt wind may burn the leaves. |
Drought Tolerance: |
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Low; requires moist to wet soils and is intolerant of long periods of drought. |
Light Requirements: |
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Light shade to moderate shade. |
Flower Color: |
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N/A. |
Flower Characteristics: |
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There are no flowers; the plants reproduce by spores. |
Flowering Season: |
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All year. |
Fruit: |
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Inconspicuous spores. |
Wildlife and Ecology: |
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Horticultural Notes: |
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Can be grown from spores. Very difficult to grow. |
Comments: |
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It is listed as endangered by the state of Florida. See also Florida Natural Areas Inventory's Field Guide to the Rare Plants of Florida page (Chafin 2000). |
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James Johnson Miami-Dade County, 2013
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Jennifer Possley In habitat, Matheson Hammock Park, 2006
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Jennifer Possley In habitat, Matheson Hammock Park, 2006
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