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Caltha natans
Floating Marsh Marigold
Small waterlily-
· Winter hardy
Polygonum amphibium
Water Smartweed
Short spikes of bright pink flowers. Its amphibious nature permits it to survive dry to flooded conditions.
· Water depth 0-
· Winter hardy
Potamogeton amplifolius
Large-
Underwater leaves are very broad (widest of the pondweeds). Forms surface leaves in summer.
· Water depth 2-
· Winter hardy
Potamogeton natans
Floating-
· Winter hardy
Ranunculus gmelinii
Yellow Water Crowfoot
Yellow buttercup-
· Winter hardy
Sagittaria cuneata
Arum-
· Winter hardy
Sparganium angustifolium
Narrow-
· Winter hardy