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Saw Palmetto

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Note the saw-like teeth along the petiole (leaf stem). Saw Palmetto (Serenoa
repens) is a palm that grows from prostrate trunks in open, sunny sites and
may form erect trunks in moist shady sites. Like many of the plant species of
this region, Saw Palmetto may form large spreading patches from clonal
(underground vegetative) offshoots of a single original plant.
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If you look up and around, you will notice several old,
bleached dead trees or snags. If you look closely, you may see a
woodpecker cavity used for roosting or nesting. In this area you might
see one of several species of woodpeckers: Downy, Pileated, Red-headed,
or Red-bellied Woodpeckers. With the advent of frequent prescribed bums
and occasional wild fires, even Hairy Woodpeckers have nested here recently.
In Florida, this species is mostly confined to recently burned pinelands,
and is now becoming scarce because of widespread fire suppression.
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Fallen Sand Pine

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This Sand Pine (Pinus clausa) was blown down by a tornado on Christmas
Eve, 1986. Hundreds of trees, primarily Sand Pines, were blown down
during that storm. Disturbance by both wind and fire allows rejuvenation
of many scrub species. If you look closely at the log you can see fungus
growth and holes made by wood boring insects. Birds and some mammals use
the tangled limbs as refuges. Sand Pines rarely live more than about 50
years before being either burned or blown down.
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Prickly Pear Cactus

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This cactus (Opuntia compressa) occurs in most open habitats on the Lake
Wales Ridge. Its bright yellow flowers appear in April. Young cactus pads
are eaten by Gopher Tortoises; older pads are often spotted with white
furry-looking blobs, which are cochineal scale insects. These insects
produce a bright red pigment in their bodies, which was used as a dye by
the Indians of Mexico and South America before the arrival of the
Spaniards. This dye then became a major item of international commerce.
Cochineal dye is still occasionally used today but it has been largely
replaced by aniline dyes. The presence of cactus reminds us the scrub
community is very desert-like.
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Small Clearing

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This small clearing is covered with ground lichens
and Spike Moss. The delicate, puffy plants resembling dried sponges are
lichens. Spike Moss (Selaginella arenicola), which is much less abundant,
is a small, stiff, gray-green, branched plant about the same size as a
lichen. Both these drought-adapted plants colonize bare sand areas in
Florida Scrub. Lichens are plants with symbiotic associations between
fungi and algae. They obtain most of their moisture from the air. The
algae photosynthesize to provide carbohydrates, and the fungal hyphae
absorb nutrients. Spike Moss is a primitive green plant with an extensive
system of very fine roots.
Gopherus polyphemus
Gopher Tortoise burrow
art by M Deyrup

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Gopher Tortoises (Gopherus polyphemus) are champion
diggers and some burrows stretch 30 ft. long and 10 ft. deep. Several
Gopher Tortoise burrows can be seen by following short side trails.
Other animals share these same burrows for relief from extreme hot or cold
temperatures. A deep burrow also provides secure escape from fires and predators.
Gopher Frogs (Rana capito aesopus) spend the major portion of their
lives in Gopher Tortoise burrows, coming out only to feed and to find a seasonal
pond for breeding during the late summer. Of course, other animals dig
burrows as well. Keep a lookout for a small, perfectly round hole in
the white sand. This is the burrow of the ghostly white Scrub Wolf
Spider (Geolycosa xera archboldi). This spider is active
in the evening, when it stalks its prey on the surface of the sand.
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Sand Pines

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Sand Pines of several sizes are growing along the opposite side of the trail from the marker. Sand Pine has short, twisted
needles and fine twigs. The cones remain on the tree for many years.
Many of the cones remain closed until heated by fire. After a fire, the
cones open and their seeds fall onto newly bare soil and sprout in great
numbers. Throughout the year, pine seeds are an important food source for
small mammals. Look at the base of the tree to find well-chewed pine
cones, the work of squirrels and mice.
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Pinus clausa
Sand Pine
art by M Deyrup
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