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Hawaii's Most Invasive Horticultural Plants |
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Hawaii's Most Invasive Horticultural Plants |
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 (Photo credit: Gerald D. Carr) |
| Other names: | ferny azolla |
| Description: | Floating aquatic fern up to 3/4" long with a generally triangular shape, leaves are tiny pale green to reddish overlapping scales. |
| Risk areas: | Lakes, ponds, ditches, canals, marshes, and slow-moving streams. |