Common nameWater Fern Azolla filiculoides © Natural History Museum Latin names ClassPteridopsida OrderSalviniales FamilyAzollaceae GenusAzolla Speciesfiliculoides Geographic details Habitatin water Soil typetolerant DistributionThroughout South British Isles NativeYes General Plant heightsmall BranchedNo Plant colourglaucous green Habitfloating Conservation statusnot threatened Wikimedia Urlhttps://species.wikimedia.org/wiki/Azolla_filiculoides Leaf details Separate fertile leavesNo Leaf shapeovate Pinnaeno pinnae WintergreenNo Spore details HomosporeNo Sori details Sori shapeglobose Sori descriptionsporocarp Sori placefirst leaf of a lateral branch Indusium details Indusium presentNo