Plant larger and much coarser than P. nudum. 3 ridges only on main stem, 3mm across. Ult. segs. 2mm diam. Bifid bracts subtending sporangia 2mm long. Midrib without scale lvs 2 lateral wings with scales. On closer examination the stems consist of a midrib without scale leaves but 2 lateral wings with scale leaves, P. complanatum [previously named as Psilotum triquetrum].