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Acer palmatum  |
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Japanese Maple |
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5 |
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Japan |
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Upright to weeping, mound-like
in outline, dense, often multi-stemmed. |
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15-25 feet tall with a similar
or greater spread. |
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Flowers are purple, small,
borne in a small, stalked corymb,
not important. |
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May-June |
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Leaves are opposite, simple,
2-5 inches long, divided nearly to the base into
5-9 lobes, each lobe divided like a pinnate
leaf, varying from yellow-green to deep
maroon-red, depending upon cultivar. |
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Fall color is bronze or
purplish. |
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Bark is medium gray in color,
with chalky-white stripes. |
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Fruit is a samara, ˝ inch
long, not important. |
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See below |
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The cultivars can be divided into three main
groups: |
1. Leaves small, usually 5 main lobes
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'Atropurpureum' - red leaves throughout the entire growing
season.
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'Burgundy Lace' - cutleaved form with reddish
foliage
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'Sanguineum'
- similar to 'Atropurpureum' but leaves a lighter red
color
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'Versicolor' - leaves
green with white, pink and green variegation
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2.
Leaves with 7 main lobes (cultivars of
A. palmatum
heptalobum)
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'Elegans' - leaves 5 inches long and when first open they
have a rose-colored margin
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'Ohsakazuki' - larger leaves,
yellowish to light green but turning a brilliant red in
the fall
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'Reticulaturn' - leaves with green veins, the rest of the
leaf blades being variegated in yellow, white and pale
green.
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3. Leaves dissected with 7, 9 or 11 lobes
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palmatum dissectum
- Threadleaf Japanese Maple - Bloodred
leaves, delicately cut, with gracefully pendant
branches
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palmatum dissectum 'Flavescens' - yellowish foliage
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palmatum dissectum 'Omaturn' - brilliantly red-colored foliage
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