Scientific Name:
Aciphylla simplex Petrie, Trans. & Proc. New Zealand Inst. 22: 440 (1889 [1890])

Stock us. multicipital, each branch bearing a dense rosette of lvs, the whole plant forming cushionlike masses up to 6 dm. diam. and 10 cm. tall. Lvs simple, sessile on submembr. sheaths up to ± 4 cm. × 10 mm. Lamina straight or curved, exstipulate, concavo-convex, 3–10 cm. long, tapering to blunt but mucronulate apex; hard, rigid. with thickened margins. Stems stout, grooved, up to c. 10 cm. × 5 mm.; infl. a ± globose panicle, with oblong-lanceolate, acute bracts up to 2.5 cm. long. Umbels few, densely fld, forming an infl. up to c. 5 cm. diam., on peduncles 10–25 mm. long. Umbellules globose, up to c. 15 mm. diam; rays very slender, short. Umbellules of female plants up to c. 3 cm. diam.

[From: Allan (1961) Flora of New Zealand. Volume 1.]

Indigenous (Endemic)
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Naturally Uncommon]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Not Threatened]
Petrie, D. 1890 ("1889"): Descriptions of New Native Plants. Transactions and Proceedings of the New Zealand Institute 22: 439–443.