NALMS Invasive Species Cards

Thanks to a grant from BoatUS Foundation NALMS has produced four timely invasive species cards designed to help lake users identify and join in the effort to combat the spread of four invasive species: Curly-leaf Pondweed, Eurasian watermilfoil, Hydrilla, and Zebra Mussels.

These cards are available to all NALMS members free of charge upon request. NALMS will also ship the cards to members of its Affiliate and Non-Profit organization members free of charge. Orders from other sources will assessed a shipping charge. Please allow 5-10 business days for delivery.

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Curly-leaf Pondweed

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Curly-leaf Pondweed is an aquarium plant that was accidentally
introduced in the United States. Its leaves are about 3 inches
long, have wavy edges and are reddish-green.

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Eurasian watermilfoil

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Eurasian watermilfoil has slender stems and submersed feathery
leaves with tiny flowers produced above the water surface. Leaves
are thread-like, with 9-21 pairs of leaflets per leaf.

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Hydrilla

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Hydrilla was brought to the United States as an aquarium plant.
It is fast-growing and has small, serrated leaves that occur in 4
to 8 whorls along the stem.

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Zebra Mussels

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Zebra Mussels are small bottom-dwelling mollusks that can reach
up to 2 inches long but are usually under 1 inch in length. They have
a yellowish or brownish shell with alternating light and dark stripes.

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