Blechnum L.
Coenosori in a continuous or almost continuous line on each side of the midrib covering the vascular commissures, having a membranous indusium opening inwards towards the costa. Veins of the sterile fronds free Blechnum
Fertile and sterile fronds dissimilar
Sterile fronds pinnate, pinnatisect or, if pinnatifid into numerous segments, then the segments not noticeably constricted at the base
Sterile frond-segments (pinnae) stalked except a few of the upper pairs. Rhizome erect or shortly creeping
Lower lateral sterile pinnae auricle-like and/or much reduced in size. Rhizome with an erect portion bearing a crown of fronds
Sterile and fertile pinnae not auriculate at the base or with the lower pairs very slightly auriculate. Scales of the rhizome dull, mostly concolorous, rarely with a paler border. Stipes of mature plants stramineous, sometimes mottled with brown; the base dark brown, smooth or slightly tuberculate. Plants up to 90 cm high. Widespread. Usually on the tablelands, along the banks of creeks in open forest or in narrow mountain gorges, at the edges of waterfalls or in swampy creeks in cleared RF areas. Soft Water Fern B minus
Sterile and fertile pinnae very prominently auriculate at the base. Scales of the rhizome glossy, with a dark central band. Stipes of mature plants dark red-brown or black, very tuberculate. Plants up to 120 cm high. Coast. Swampy low-lying land, near the sea Blechnum camfieldii