poison ivy


  • WordNet 3.6
    • n poison ivy climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact
    • n poison ivy dermatitis resulting from contact with the poison ivy plant "my poison ivy is drying up"
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Webster's Revised Unabridged Dictionary
  • Interesting fact: The oil that is found in poison ivy is called "urushiol."
    • Poison ivy (Bot) a poisonous climbing plant (formerly Rhus Toxicodendron, or Rhus radicans, now classified as Toxicodendron radicans) of North America. It is common as a climbing vine, especially found on tree trunks, or walls, or as a low, spreading vine or as a shrub. As a low vine it grows well in lightly shaded areas, recognizable by growing in clusters of three leaves. Its leaves are trifoliate, rhombic-ovate, and variously notched. Its form varies slightly from location to location, leading to some speculation that it may consist of more than one species. Many people are poisoned by it, though some appear resistant to its effects. Touching the leaves may leave a residue of an oil on the skin, and if not washed off quickly, sensitive areas of skin become reddened and develop multiple small blisters, lasting for several days to several weeks, and causing a persistent itch. The toxic reaction is due to an oil, present in all parts of the plant except the pollen, called urushiol, the active component of which is the compound pentadecylacatecholaccording to Charles H. Booras). See Poison sumac. It is related to poison oak, and is also called mercury.
    • Poison ivy (Bot) an American woody creeper (Rhus Toxicodendron), with trifoliate leaves, and greenish-white berries. It is exceedingly poisonous to the touch for most persons.
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In literature:

They got into some poisonous wild thing, perhaps poison ivy.
"Old Rail Fence Corners" by Various
The same remarks apply to the effects of the poison ivy and poison sumac.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
The further he goes the worse the jungle of poison-oak and ivy, which at last circles him round in strangling embrace.
"Little Journeys to the Homes of the Great, Volume 7" by Elbert Hubbard
They were poison-ivy, but she did not know that.
"IT and Other Stories" by Gouverneur Morris
Treatment of ivy poison (p. 134).
"How Girls Can Help Their Country" by Juliette Low
Poison ivy, to whose baneful touch fortunately none of us appear susceptible, grows everywhere about.
"Afloat on the Ohio" by Reuben Gold Thwaites
A crumbling rail fence laced with the vines of the poison ivy trailed beside it.
"Dwellers in the Hills" by Melville Davisson Post
However, you'll find more discomfort from the poison ivy, I imagine.
"Our Next-Door Neighbors" by Belle Kanaris Maniates
She will crop the poison ivy with impunity, and I think would eat thistles if she found them growing in the garden.
"A Year in the Fields" by John Burroughs
Pizen Gulch was infested with poison ivy or sumach.
"Our Southern Highlanders" by Horace Kephart

In poetry:

In England, there are wrongs no doubt,
Which should be righted; so men say,
Who seek to weed earth's garden out,
And give the roses right of way;
Yes, right of way, to fruit and rose,
Where now but poison ivy grows.
"In England" by Ella Wheeler Wilcox

In news:

Scratching Out Poison Ivy Allergy .
Hot water can soothe poison ivy itch.
For some of us, daytime talk shows, with their celebrity puffery and soap-sister schmaltz, are as enticing as poison ivy.
NJ town considers goats to eat poison ivy.
Officials in a New Jersey shore town might use goats from Maryland to rid an environmentally-sensitive area of poison ivy.
Seaside Park is considering bringing in goats to eat poison ivy.
Natural remedies for treating poison ivy, oak and sumac .
The last time Rebecca Braslau got a bad case of poison oak, she found herself pondering the chemical structure of urushiol, the toxic oil in poison oak and its relatives, poison ivy and poison sumac (all species of Toxicodendron).
From left to right, poison ivy, poison sumac and poison oak, are outdoor hazards it pays to be familiar with.
Be careful when harvesting because poison ivy is known to often grow in the same spot.
This summer's heat, humidity boosts poison ivy in New Jersey.
This summer's weather is encouraging the growth of Tarzan-worthy poison ivy vines.
Before Kim announced her split from Kris she dressed up as Batman and Robin villain Poison Ivy and hosted a festive bash in New York City.
In fall, poison ivy is one of the first plants to drop its leaves.
What does poison ivy look like, and how do I treat the rash it causes.