Hydrilla

plant genus

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Last updated

June 24, 2026

Quick Summary

Hydrilla verticillata is a submerged aquatic plant belonging to the frog's-bit family. While possibly native to Africa or Europe, it has naturalized globally and is considered a troublesome invasive weed in North America, where it was introduced in the 1950s.1

This fast-growing perennial features long stems with small, toothed leaves arranged in whorls. Hydrilla reproduces primarily asexually through stem fragments, rhizomes, stolons, and turions, though it also has flowers. Its dense growth can clog water systems and negatively impact biodiversity.1

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hydrilla
…sole member of the genus Hydrilla in the frog’s-bit family (Hydrocharitaceae). Hydrilla is possibly native to Africa or Europe but has naturalized in lakes and streams around the world. Brought to North America in the 1950s, the plant has become a troublesome aquatic weed, as its vast carpets of tangled…
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…sole member of the genus Hydrilla in the frog’s-bit family (Hydrocharitaceae). Hydrilla is possibly native to Africa or Europe but has naturalized in lakes and streams around the world. Brought to North America in the 1950s, the plant has become a troublesome aquatic weed, as its vast carpets of tangled…
Read More