Herbarium and invasive species

TOPSHAM, ME - JUNE 5: A preserved Japanese Knotweed herbarium sample at Pixie Williams' home. Williams and some volunteers have been putting together a teaching archive of samples for the Lake Stewards, to help teach volunteers what species are invasive in Maine lakes, and which are native. (Staff photo by Brianna Soukup/Portland Portland Press Herald via Getty Images)
TOPSHAM, ME - JUNE 5: A preserved Japanese Knotweed herbarium sample at Pixie Williams' home. Williams and some volunteers have been putting together a teaching archive of samples for the Lake Stewards, to help teach volunteers what species are invasive in Maine lakes, and which are native. (Staff photo by Brianna Soukup/Portland Portland Press Herald via Getty Images)
Herbarium and invasive species
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Credit:
Portland Press Herald / Contributor
Editorial #:
985360374
Collection:
Portland Press Herald
Date created:
05 June, 2018
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Source:
Portland Press Herald
Object name:
20180605_LakeMonitoring_02.jpg
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3000 x 1932 px (25.40 x 16.36 cm) - 300 dpi - 3 MB