- = Calosciadium antipodum Endl. ex Walp., Ann. Bot. Syst. (Walpers) 702 (1850)
- = Ligusticum antipodum Hombr. & Jacquinot ex Decne., Voy. Pôle Sud, Botanique, 2, 63 (1853)
Very robust, up to ± 1 m. tall. stems deeply furrowed. stock very stout, taproot deeply descending. Lvs on petioles 15–20 × (0·5)–1–2 cm.; sheaths broad, up to 8 cm. long, tapering to petiole, shortly bluntly ligulate. Lamina rigid, coriac., about oblong to deltoid in outline, (10)–15–(25) × (6)–12–(16) cm. Primary pinnae 5–10 pairs, (3)–4–6–(10) × 3–(8) cm., rather distant, but often overlapping; secondary pinnae deeply cut into narrow segs ± 25 × 1·5–2 mm., the cartilaginous margins extended into pungent tips ± 1–2 mm. long Umbels us. many, on long peduncles, compound, ± 5 cm. diam.; involucral bracts linear. Calyx-lobes triangular, subacute; petals reddish mauve to white. Fr. ± 6·5 mm. long; mericarps unequal, us. one with 5, the other with 3–4 well-developed wings.
[From: Allan (1961) Flora of New Zealand. Volume 1.]
Flowering: Oct.–Feb.; Fruiting: Mar.