Burweed or sticker weed produces seed pods with sharp spinal columns. We seem to have a wealth of it in our blossom beds, and despite the number of times I weed, it remains to come back. I have actually dropped almost a foot into the ground, and still discover roots. A ring of white hairs is apparent at the base of each blade. Flowering stems generate three to 7 spike-like branches at their tips as well as duplicate from seeds along with roots as well as stolons.
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