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"Leaves of 3, let them be." This rhyme pertains both to poison ivy identification (for poison ivy pictures, click the picture at right and see Page 3) and poison oak identification. ... it is also included in my "Pictures of Poison Ivy" gallery. But Virginia creeper more often has five leaves to a branch rather than three;
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landscaping.about.com/cs/weedsdiseases/a/poison_ivy.htm
landscaping.about.com/cs/weedsdiseases/a/poison_ivy.htm
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You may notice however that a typical berry plant with edible berries will grow on plants with leaves of three. To make matters more confusing, sometimes poison oak has five leaves. There are however a few characteristics of poison oak and poison ivy that separate them from the plants that grow edible berries.
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www.pickatrail.com/jupiter/features/health/oak_and_berr...
www.pickatrail.com/jupiter/features/health/oak_and_berry.html
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Poison ivy and oak have three leaflets. It's very rare for them to have five. Poison sumac has 7 to 15 paired leaflets. If in doubt look closely at the leaves. Poison ivy/oak/sumac (except in early spring when they are just blooming) will h...
http://answers.yahoo.com/question/index?qid=20070618202...
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Learn about poison oak - what it looks like, how to avoid it and control it and how to treat the rashes it causes. ... In general, leaves are composed of three leaflets although leaves of five, seven or nine leaflets ... Like many deciduous trees, the leaves of the poison oak change colour in the fall, often turning bright red.
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www.poison-oak-info.com/
www.poison-oak-info.com/
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Unfortunately, poison ivy, oak and sumac don't grow with little picture ID badges around their stems, so you have to know what to look for. The famous rule "leaves of three, let it be" is good to follow, except that some of the plants don't always play by the rules and have leaves in groups of five to nine.
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forums.gardenweb.com/forums/load/weeds/msg0620022330152...
forums.gardenweb.com/forums/load/weeds/msg0620022330152.html
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Poison ivy, oak, and sumac are plants that commonly cause an allergic skin reaction. The result is typically an itching, red rash with bumps or blisters. ... Poison oak is primarily found on the West Coast. It grows in the form of a shrub and has three leaves similar to poison ivy.
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www.umm.edu/ency/article/000027.htm
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the stalks of the leaves do not grow from the same point on the stem; the stem is woody, and the plant may have creamy yellow-green flowers or clustered waxy berries that are green to yellow. Poison oak is similar, but has rounded tips, and the center leaves resemble oak leaves. ... Virginia creeper has five leaflets,
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www.wildfirenews.com/fire/articles/oak.html
www.wildfirenews.com/fire/articles/oak.html
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Poison Oak is divided into the Eastern and Western varieties. The Eastern Poison Oak (Toxicodendron toxicarium, changed in 1971 from T. pubescens) has the most "oak-looking" leaves of any of the species. It usually has multi-lobed leaves, no aerial roots on ... The flowers, which appear in June, are unisexual, five-petaled,
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ops.tamu.edu/x075bb/caddo/frameidx.html
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The old axiom is, "Leaves of three, let it be." But poison oak and ivy can have up to five leaves on a stem. Poison sumac usually has seven to 13 small leaves. The plants take the form of bushes as well as vines. Sometimes they wind around other plants, making them even harder to spot.
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www.ahealthyme.com/topic/topic13718
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