Calflora, a 501c3 non-profit
Taxon  Report  
Azolla microphylla  Kaulf.
Mexican mosquito fern
Azolla microphylla is a fern that is native to California, and also found elsewhere in North America and beyond.
also called Azolla mexicana
California Rare Plant Rank: 4.2 (limited distribution).   CNDDB
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(103 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Azolla
Family: Azollaceae  
Category: fern  
PLANTS group:Fern
Jepson eFlora section: fern

Wetlands: Occurs in wetlands

Habitat: freshwater-marsh

Communities: Freshwater Wetlands, wetland-riparian

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
JEF + CNPS + PLANTSAzolla mexicana
More information about  Azolla microphylla
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

CNPS Inventory


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 09/27/2022).