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I'm in Massachusetts, and recently moved into a new house. We have a vine in the yard which I have been having trouble identifying so far, and I was hoping someone here might know.

It has not yet flowered, so I am unable to give any information on the flower.

When I pull the roots, they are long runners, and smell sweet.

It likes climbing things, as may be obvious from the photos, and I first noticed it because it was coming up in the lawn. It appears to like to be in similar places to a sweet pea vine and a (probably) bittersweet nightshade vine.

Basically, I'm not sure if it's something we want to be keeping, or trying to completely eradicate. (I don't actually think I can completely eradicate it unless I destroy the yard, mind you)

Thanks!

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2 Answers

up vote 10 down vote accepted

From the photos, and your description it sounds like Morning Glory. They can be cultivated as a flower, but they're most usually known as a troublesome weed that's very hard to eradicate. They will grow back from the smallest segment of root, so pulling them up means taking a lot of care not to leave little pieces behind. They can also smother other more desirable plants -- as I think you're finding out.

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Aka Bindweed! Not easy to eradicate... –  Mancuniensis Jun 26 '11 at 13:16
    
Part of why I wasn't sure if it was a Morning Glory is because I thought it was an annual in places with frost. I did notice that the wiki link you gave indicated that some are able to handle frost, though. Sigh... Thanks! –  Suzanne Hillman Jun 27 '11 at 2:31
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Looks like a Chinese yam! I have one tooo! http://na.fs.fed.us/spfo/invasiveplants/factsheets/pdf/chinese-yam.pdf

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