Wild Florida Photo - Nephrolepis biserrata

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Nephrolepis biserrata

GIANT SWORD FERN

Florida native

Threatened Florida species
 

A large fern of South Florida swamps and wet hammocks. Occasional from Lake Okeechobee southward, excluding the Keys, also occurring in Highlands County. The range includes Louisiana, Hawaii, Puerto Rico and the Virgin Islands.
Living up to its name, giant sword fern grows up to head height and forms clumps, also sometimes epiphytic in cypress and pop ash swamps. The fronds can be from .35 - 2 m (14 in. to 6-1/2 ft.) tall and 3-35 cm (1-14 in.) wide. The petiole is from 15-55 cm (6-22 in.) long and sparsely to moderately covered with reddish to light brown hair-like scales. The rachis is pale to dark brown, also with moderately spaced scales with the pinnae spaced up to 3.5 cm (1-1/3 in.) apart. The pinnae are oblong to narrowly deltate with a small lobe on both sides at the base. These auricles are sometimes inconspicuous. The sori are contained in circular to horseshoe shaped indusia along the underside margin of the pinnae.
Nephrolepis biserrata is listed as threatened in Florida. Some place all of the sword ferns in their own family Nephrolepidaceae.

Purchase Giant Sword Fern Sori by Paul Rebmann

 
Nephrolepis biserrata is a member of the Dryopteridaceae - Wood Fern family.
 

Native Florida Plants

  Robert G. Haehle; Joan Brookwell
 Low Maintenance Landscaping and Gardening

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Native Florida Plants
Native landscapes are easier to maintain, use less water and thrive without chemical pesticides and fertilizers. Native Florida Plants describes every type of regional flora—-from seaside foliage and wildflowers to grassy meadows, shrubs, vines, and aquatic gardens—-in 301 profiles and accompanying color photographs.


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