FNPS Plant Database

Ctenitis sloanei

Florida tree fern, red-hair comb fern

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Nomenclature

Common Name:

Florida tree fern, red-hair comb fern

Synonym(s):

Genus species:

Ctenitis sloanei

Family:

Dryopteridaceae

Plant Specifics

Form:

tree

Size:

3-4 ft tall

Life Span:

long-lived perennial

Flower Color:

Fruit Color:

Phenology:

Noted For:

Landscaping

Recommended Uses:

Specimen plant or mass planting in well-drained but moist, humid sites.

Considerations:

Rarely sold and difficult to find; listed as Endangered by the State of Florida.

Availability:

Propagation:

Light:

Shade, Part Shade

Moisture Tolerance:

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

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

Somewhat moist, no flooding ---to--- Somewhat moist, no flooding

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:

Humus (organic, upland), Lime Rock

Soil pH:

Suitable to Grow In:

10B, 11

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



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Ecology

Wildlife:

Native Habitats:

Limestone with humus.  Found on edges of tropical sink holes, and in Bermuda, around cave entrances.

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

Citations:

Gann, G.D., C.J. Abbott, C.G. Stocking, K.N. Hines, and collaborators. Natives For Your Neighborhood. https://www.regionalconservation.org/beta/nfyn/plantdetail.asp?tx=Ctensloa , accessed 2025. The Institute for Regional Conservation. Delray Beach, Florida.

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