Fronds few together, with secondary divisions deeply cut, soft, hairless, lowermost branches with additional branches extending downwards; stalk to 50 cm long. Segments with veins fusing at their base. Sori continuous except at tip and base of segment.
Needs shelter and warmth.
Lowermost frond branches further branched; veins fusing to form regular arches close to the branch rib but others free and forked. A variable species needing further study; very similar to P. pacifica. Pteris tricolor Painted Brake, is a name of no botanical standing. It is a fern that has new fronds that are bronze at first, the main stems and veins retaining a purplish colouration. This is probably a cultivar of P. biaurita and best recognised under the cultivar name 'Tricolor'.
Source: (1995). Pteridaceae. In: . Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.