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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) |
| Description: | Tiny, floating aquatic herbs 1/16-1/4"; pale green with 1 root per frond; fronds single or connected in groups of 2-10; flowers and fruits not visible. |
| Risk areas: | Freshwater lakes, ponds, ditches, canals, and slow-moving streams. |
| WARNING: | Individual plants are tiny, but colonies develop in such numbers that still waters can be covered with a continuous carpet of plants. |