Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Salviniales
WEAKLEY'S FLORA (10/20/20):
Azolla pinnata ssp. asiatica
FAMILY
Salviniaceae
NEW! Click to go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Aquatic weeds can clog irrigation channels and cover lakes, threatening crops and wildlife. Read more -- Outlawed! Federal Noxious Weeds: The Aquatics.
The genus Azolla contains the smallest ferns in the world. This species was likely introduced by someone emptying their aquarium into a natural waterbody, per Center for Aquatic & Invasive Plants.
Check out EDDMapS.org to see where this has been reported.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Azolla pinnata ssp. asiatica
FAMILY
Azollaceae
COMMON NAME:
Pinnate Mosquito-fern, Asian Mosquito-fern, Feathered Mosquito-fern
No pictures are available at this time.
WEAKLEY'S FLORA (10/20/20):
Azolla pinnata ssp. asiatica
FAMILY
Salviniaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Azolla pinnata ssp. asiatica
FAMILY
Azollaceae
4394
Fern/Fern ally; Floating aquatic (the roots floating)
Annual
Non-native
Documented growing wild in - - -
NEW! Click here to see a range map (and maybe identification notes) from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant is causing problems in natural areas outside its native range, according to authorities such as:
- SC Department of Natural Resources Aquatic Nuisance Species List, 2003
- SC List of Regulated Pest Plant Species, 2017
- USDA Federal Noxious Weeds, 091820
LEAVES:
Regularly 2(3)-pinnately compound (tiny), generally equilaterally triangular in outline
Alternate
FRUIT:
None seen
TO LEARN MORE about this plant, look it up in a good book!