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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Azolla filiculoides

Azolla filiculoides Lam.

Pacific mosquitofern, American Water Fern, Mosquito Fern

Azollaceae (Azolla Family)

Synonym(s):

USDA Symbol: AZFI

USDA Native Status: L48 (N), AK (N), HI (I), CAN (I)

Plants may quickly spread over water surface during fertile stage, generally in late spring.

 

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Plant Characteristics

Duration: Annual
Habit: Herb , Fern
Size Notes: Stems prostrate when immature, up to about 1 inch long. Become nearly erect, up to about 2 inches tall, when mature.

Bloom Information

Bloom Color: Not Applicable
Bloom Notes: Non-flowering, sporulating plant. Plants green to yellowish green or dark red.

Distribution

USA: AK , AZ , CA , FL , HI , NY , OR , TX , WA
Canada: BC
Native Habitat: Stagnant and slow moving waters.

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: OBL OBL OBL OBL OBL
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Azolla filiculoides in USDA Plants
FNA: Find Azolla filiculoides in the Flora of North America (if available)
Google: Search Google for Azolla filiculoides

Metadata

Record Modified: 2022-09-29
Research By: CBR

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