Difference between revisions of "Knobweed"
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The sap or "milk" of knobweed is a powerful antiseptic.{{ref|b|twok|c|23}} It is a creamy white color.{{ref|b|twok|c|27}} The sap can be removed from the stalk by squeezing it along the stem.{{ref|b|twok|c|23}} Usually two or three drops are produced.
The trade of knobweed sap is a
== Notes ==
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