Download Salix floridana - Florida Natural Areas Inventory

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FLORIDA WILLOW
Gil Nelson
Salix floridana Chapm.
Synonyms: Salix chapmanii Small
Salix astatulana Murrill & E. J. Palmer
Family: Salicaceae (willow)
FNAI Ranks: G2/S2
Legal Status: US–Mgmt Concern FL–Endangered
Wetland Status: US–FACW FL–OBL
Field Description: Spindly tree or shrub to 12 feet tall, with gray bark
and brittle, reddish-brown twigs. Leaves 2 - 6 inches long and 0.8 - 2
inches wide, deciduous, alternate, lance-shaped with rounded base and
pointed tip; margins toothed with tiny, knobbed glands; upper surface
bright green, lower surface grayish-white with hairy, brown veins; leaves
on young shoots with conspicuous, half-circular stipules. Male and female
flowers in catkins on separate plants (male catkins in photo, above right),
1.2 - 3.2 inches long. Fruiting catkins 0.8 - 1 inch in diameter.
Similar Species: Carolina willow (Salix caroliniana), a sturdy tree to 30 feet
tall, has linear leaves up to 8 inches long and only 1.2 inches wide, grayishblue beneath, stipules sometimes present; fruiting catkins less than 0.7 inch
in diameter. Florida willow has larger fruiting catkins and wider, more oblong
leaves.
Related Rare Species: Heart-leaved willow (Salix eriocephala), stateendangered, is found in 3 counties in the Panhandle.
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Florida Natural Areas Inventory, 2000
Florida willow
Salix floridana
Habitat: Springheads, edges of spring runs, hydric hammocks, floodplains.
Best Survey Season: During fruiting, March–April, since leaves and fruits
are both useful for positive identification.
Range-wide Distribution: FL, GA.
Conservation Status: 15 populations of Florida willow are known, 10 in
conservation areas.
Protection & Management: Protect springs and spring runs from pollution, sedimentation, and hydrologic changes. Protect floodplains and wet
hammocks from clearcutting and draining.
References: Argus 1986, Coile 2000, Godfrey 1988, Nelson 1996, Patrick et al.
1995, Ward 1979, Wunderlin 1998, Wunderlin and Hansen 2000a.
leaf margin
stipule
male
flowers
leaf
scar
female flowers
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Florida Natural Areas Inventory, 2000