- ≡ Ligusticum deltoideum Cheeseman, Trans. New Zealand Inst. 14: 299 (1882)
Slender herb, seldom > 15 cm. tall, with rather stout stock. Lvs on petioles (2)–5–(10) cm. long; sheath c. 8 mm. long, delicate, with short rounded ligules. Lamina 3–5–(10) × 1·5–3–(5) cm., about deltoid in outline, with 3–5 pairs of distant pinnae. Lower pair of primary pinnae up to c. 6 cm. long, including petiole, again with ± 4 pairs of pinnae. Secondary pinnae up to ± 2 cm. long; tertiary pinnae, or lobes, ± 3 pairs, distant, narrow linear-lanceolate, acute, up to ± 5 mm. long, hair-tipped; or lobes broader, deeply and finely cut, cuneately narrowed to base. Peduncles up to c. 6cm. long; bracts small, sheathing. Umbels compound, ± 3–4–(5) cm. diam; primary rays unequal, spreading, up to c. 5 cm. long; involucral bracts few, short, filiform to capillary, expanded at base. Umbellules on rays up to c. 5 mm. long; fls minute, petals white or sts flushed with pink. Fr. narrow-oblong, (3)–4–5–(7) mm. long; mericarps 5-winged.
[From: Allan (1961) Flora of New Zealand. Volume 1.]
Flowering: Dec.–Jan.; Fruiting: Jan.–Mar.