Azolla cristata is a free-floating aquatic fern that forms dense mats on the surface of still or slow-moving freshwater. It is known for its symbiotic relationship with the cyanobacterium *Anabaena azollae*, which fixes atmospheric nitrogen.
Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Azolla Cristata (Azolla cristata)
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Polypodiopsida |
| Order | Salviniales |
| Family | Salviniaceae |
| Genus | Azolla |
| Species | Azolla cristata |
Similar in genus Azolla
