Question: Hi, I tried identifying this roadside weed found in southern Vermont without success. It has a squarish stem which appears …
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Question
Hi, I tried identifying this roadside weed found in southern Vermont without success. It has a squarish stem which appears to be hollow and has lengthwise ridges. I didn't see it while flowering so I can't say what color the flowers were. Thank you for your help.
Answer
Dear lmc825, you've photographed Verbena urticifolia (white vervain), a native species that often inhabits slightly richer soils, such as those in the seasonal flood zone of rivers (though it often also is found in fields and along roadsides).
