Common nameCommon Maidenhair spleenwort Asplenium trichomanes quadrivalens © Natural History Museum Latin names ClassPteridopsida OrderPolypodiales FamilyAspleniaceae GenusAsplenium Speciestrichomanes Subspeciesquadrivalens Geographic details Habitatrocks and walls Soil typetolerant DistributionThroughout British Isles NativeYes General Plant heightsmall BranchedNo Plant colourmid-green Rachis descriptionblack-brown; narrow wing down either sid Stipe descriptionglossy; thick wiry dark-brown; persistent Habitdense tuft Conservation statusnot threatened Wikimedia Urlhttps://species.wikimedia.org/wiki/Asplenium_trichomanes_subsp._quadrivalens Leaf details Separate fertile leavesNo Leaf shapelinear-elliptic Pinnae1-pinnate WintergreenYes Spore details HomosporeYes Rhizome details Rhizome descriptionshort Rhizome scalescentral red-brown stripe Rhizome positionupright Sori details Sori shapelinear-oblong Sori placealong vein Indusium details Indusium presentYes Indusium shapebroad; conspicuous