Tuesday, April 24, 2012

Nature Notes...Now with Redness and Itching!

I am sharing this post with Nature Notes over at RamblingWoods.com.

Last week, I brought you this picture of poison ivy growing on the stump behind the garage. This week, I am going to elaborate. But first, I should say that I AM NOT A BOTANIST, IF YOU HAVE A QUESTION AS TO WHETHER A PLANT IS POISONOUS, PLEASE CHECK WITH AN EXPERT. I AM NOT AN EXPERT. I really thought that I should mention that!

So, as I mentioned one of the ways to tell poison ivy from other viney plants is that poison ivy vines have all the fringe-like little roots that you see on the photo. Some of the other vines that you may run into in the same area - like grape vine or oriental bittersweet do not have these little, fringed roots.

But, one poison ivy look-alike does have a pretty similar vine and it also has pretty similar leaves! That plant is the Virginia Creeper. And, guess what? I have both growing right next to one another behind the garage!

You may have heard this old rhyme as a way of telling the difference between poison ivy and Virginia Creeper, "Leaves of Five, Let it Thrive. Leaves of Three, Let it Be." So, what the rhyme is saying is that if it has five leaves, leave it alone. And, if it has three leaves, ALSO leave it alone! I know. I don't think that it is a very good rhyme. Here's my own personal version of it. Note that this is not very good poetry, but it does get the message across!

Leaves of Five, Let it Thrive. Leaves of Three, Bad for Me.

If you remember that version, you will know that the five leaved plant is Virginia Creeper, and the plant with the three-leaved clusters in poison ivy.

I spent some time going around town and getting pictures of both so that you could practice identifying them. Let me know in the comments if you can tell which is which!

10 comments:

  1. Good post. I left a very long poison ivy tips comment but I don't think it went through. The main tip is that once a leaf is broken in any way (even by an insect) the oil can get on you (your clothes, shoes, etc.) and that's what causes the rash. If the oil is on anything and you touch it (shoes, tools, etc.) you can get poison ivy even if there has been a time lapse. It's important to wash everything that comes into contact. If you wash yourself thoroughly, and shoes etc., right away, even if you come into contact with the oil, you should be okay.

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  2. That's good information. I know my dad used to get it when we were kids and he would be miserable. We never got it...knock on wood!

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  3. I have had no experience with poison ivy which seems kind of strange since I spent most summers playing around a cabin in the woods..Lucky maybe..? So this is good info and a good visual for me..thanks for posting this Libby....

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    1. Thanks! Hopefully, that snow you got killed the poison ivy up there. :)

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  4. Well thank goodness we don't have poison ivy here as they look soooooo similar

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    1. You're lucky! Yea, people confuse them all the time!

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  5. Hi there - some plants really do know how to fight back!

    Stewart M - Australia

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    1. Lol! That is a good way to look at it! Thanks for coming by, Stewart. :)

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  6. I wouldn't identify it even if it gave me an itch.. I am that bad at botany

    PhenoMenon
    http://throodalookingglass.com/edge/

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    1. Oh No! Then, just stay away from all green leaves on vines! :)

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