Azolla filiculoides Lam.

Locations ofAzolla filiculoides Lam. in Virginia

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Botanical Name
Azolla filiculoides Lam.
Common Name
Pacific Mosquito Fern, Large Mosquito Fern
Flora of Virginia Name/Status
Azolla filiculoides Lam.
Azolla filiculoides was first found by John Bunch at the 4H Airfield Center in 2018 and is reported in Castanea 85(2):229-231 (Bunch & Hayden (2020)) which contains photos (including photomicrographs) and a key to separate this species from A. caroliniana. At the time that FNA was published, A.filiculoides was considered strictly a West Coast species in the U.S., with a record from Georgia presumed to be an escape from horticulture, probably the aquarium trade. It is logical to assume the same for Virginia, but the FNA authors caution that the distribution of Azolla species in North America is imperfectly known as most identifications are based on outmoded keys.
The species is potentially overlooked and more widespread as it is just becoming known in Virginia.
Floating aquatic of beaver ponds and artificial impoundments. Currently known from two sites in se. Virginia but potentially overlooked and more widespread.
Native Status

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