#5 Poison Ivy (100SpeciesofPlant Challenge)

Continuing on with the 100 Species of Plant Challenge

Name: Poison Ivy

Things I already knew: We've been seeing this in our yard for the better part of a year. It grows throughout the United States and Canada, commonly found in the forest understory. It grows in clusters of 3 leaves, hence the saying "Leaves of three, leave it be!"

Things I recently learned: The toxin that it emits which causes the rash is called urushiol. I didn't know that it does not grow in Alaska, Hawaii, Newfoundland or California (according to Wiki.) Only 15% to 30% have no reaction to the plant but most if not all become sensitized to it with repeated exposure - this growing reaction can eventually lead to anaphylaxis. So far M & I have not gotten a reaction to this but Dh does and it has gotten worse with time!

That rubbing the sword fern frond - spore side down after a stinging nettle sting will removed the sting. (this would have been handy to know in May! LOL!)

Also WORTH NOTING: "If it is growing up the trunk of a tree, the presence of copious root-hairs will identify it, leading to the 'hairy vine, no friend of mine' warning."

For more info try wiki