Does HWD contaminate the Water Course it grows in?

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Full Member
Jul 16, 2006
Looking for some advice reference Hemlock Water Dropwort (HWD)

Does HWD contaminate the water course it is growing in?
Would the water be safe to be collected for consumption.


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Full Member
Jan 18, 2009
Mid Wales
In all the time I have been studying this subject I have found no warnings of contamination of drinking (running) water by HWD and, TBH, I have drunk from streams with it growing around.

That said, that does not necessarily mean there is none. I would avoid drinking standing water even after processing. Damaged plants, cuttings, etc. are more likely to contaminate IMO.

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