Common nameBlack spleenwort Asplenium adiantum-nigrum © Natural History Museum Latin names ClassPteridopsida OrderPolypodiales FamilyAspleniaceae GenusAsplenium Speciesadiantum-nigrum Alternative Genus nameAsplenium Geographic details Habitatrocks and walls Soil typealkaline DistributionThroughout British Isles NativeYes General Plant heightsmall BranchedNo Plant colourmid-green Stipe descriptionglabrous; black -> red-brown Habitloose tuft Conservation statusnot threatened Wikimedia Urlhttps://species.wikimedia.org/wiki/Asplenium_adiantum-nigrum Leaf details Separate fertile leavesNo Leaf shapeovate-triangular Pinnae2-3-pinnate WintergreenYes Spore details HomosporeYes Rhizome details Rhizome descriptionshort Rhizome scalestriangular-lanceolate Rhizome positioncreeping Sori details Sori shapelinear-oblong Sori placeon lateral veins closer to midrib Indusium details Indusium presentYes Indusium shapelinear-oblong Indusium descriptionentire