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Feathered Mosquito Fern

Azolla pinnata

Non-Native


What is Feathered Mosquito Fern?

Physical Characteristics

  • 0.39-0.98 in wide
  • Feathery
  • Triangle shape

Leaves:

  • Free-floating
  • Form large, dense mats
  • 0.039-0.078 in long

Where Does it Grow?

EDDMapS. 2024. Early Detection & Distribution Mapping System. The University of Georgia – Center for Invasive Species and Ecosystem Health. Available online at http://www.eddmaps.org/; last accessed January 17, 2024.

Non-Native

Feathered mosquito fern is native to Australia.

Is it Invasive?

Feathered mosquito fern is non-native and can be aggressive invaders in quiet ponds and are often found mixed in with duckweed or watermeal. If these fern colonies cover the surface of the water, then oxygen depletion and fish kills can occur. These plants should be controlled before they cover the entire surface of the pond.

This plant is not native to North America and should not be introduced into new water bodies and should be treated with herbicide when present.

How to Manage This Plant
Plant Glossary

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Aquatic plant photographs were provided by David Bayne, Jim Davis, Kelly Duffie, Billy Higginbotham, Michael Masser, John Clayton, Chetta Owens, Diane Smith, Joe Snow, Don Steinbach, Bridget Robinson Lassiter and Peter Woods.

You may use these photos, so long as you give credit to AquaPlant.

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