Hooker (Handbk N.Z. Fl. 1867, 747) recorded: "H. ciliatum Swartz. Rhizome 1-2 in. long. Frond oblong, acuminate, 3-pinnatifid, 2-6 in. long, 1-2 in. broad, main rhachis broadly winged throughout, ciliated; lower pinnae oblong or rhomboid, central part undivided. Segments numerous, spreading, linear, simple or forked. Involucres 2-12 on a pinnule, at the apices of the segments, immersed, suborbicular; valves divided half-way down, ciliated--Hook. Synopsis Fil. 63. Middle Island: Nelson, Travers. Closely allied to H. aeruginosum. (America, Africa)."