Platanus Occidentalis American Sycamore

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Platanus occidentalis American sycamore Family Platanaceae Origin Native WIS Code FACW CoC 5 DESCRIPTION West Virginia’s largest tree (to 50 m tall) has a spreading open crown and thin, mottled (green, brown, tan and white) camouflage-like bark that often peels, especially on older mature trees. Twigs grow in a zig-zag pattern with leaf scars Donald Cameron © encircling the buds. Leaves are simple, alternate, palmately veined (veins radiating from the base) with three to five main lobes, pointed tips and widely toothed margins. The bases of the leaf stalks (petioles) are enlarged and wrap or enclose the buds, and conspicuous © Arthur Haines leafy stipules also wrap the leaf bases on young shoots. FLOWERS AND FRUITS April to May; September to October. Flowers are very small, appear with the leaves, and both male and female flowers are in dense round clusters hanging from © Jonathan Carpenter a slender stalk. Fruits are balls of tightly clustered seeds (achenes), each attached to fine hair-like bristles for wind dispersal. HABITAT Floodplain forests, swamps, stream banks, © Larry© Allain © prairie ridge and rocky stream bars. Platanus occidentalis, fruit SIMILAR SPECIES Liquidambar styraciflua, American sweetgum, also has ball-like fruits but they are spiky; the leaves are star-shaped © E. Wang © E. Wang and it has dark furrowed bark. Liquidambar styraciflua, leaf and fruit 22 WEST VIRGINIA DEPARTMENT OF ENVIRONMENTAL PROTECTION.

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