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Please help me ID this prickly weed.

Posted by alisande Zone 4b (My Page) on
Tue, Aug 27, 13 at 19:50

I've been gardening here 38 years and never saw this weed until now. We buried our inground pool and planted a vegetable garden on the spot, and this weed showed up.

The plant is a couple of feet tall, a collection of angular stems growing in every direction. Here are closeups of the tip and stem. Those thornlike projections aren't visible to the naked eye (at least not mine), but you quickly learn not to get too close to this weed.

Thanks for your help!

Follow-Up Postings:

RE: Please help me ID this prickly weed.

Persicaria sagittata

RE: Please help me ID this prickly weed.

Bingo! Thanks very much.

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