Scientific Name:
Coprosma serrulata Hook.f. ex Buchanan, Trans. & Proc. Roy. Soc. New Zealand 3: 212 (1870 [1871])

Erect to depressed bushy shrub up to ± 1 m. tall; branches stout, spreading, with white bark falling in flakes; branchlets rather stout, glab. Lvs on winged petioles 10–15 mm. long. Stipules broadly triangular to subtruncate, ± glab.; denticles prominent, us. several. Lamina thick, coriac., dark green, ± rugulose above, paler below, subrotund to broad-obovate or obovate-oblong; apex rounded to subtruncate, mucronate; ± 40–70 × 25–40 mm.; margins cartilaginous, crenulate-serrulate. Reticulated veins evident on both surfaces. ♂ several together on very short axillary peduncles; calyx 0; corolla subcampanulate, lobes 4–5, oblong-triangular, acuminate, ciliolate; stamens 4–6. ♀ solitary on short axillary peduncles; calyx truncate, teeth 2; corolla tubular, lobes narrow-triangular, acute to subacuminate, < tube. Drupe red, broad-oblong, 7–8 mm. long.

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

Indigenous (Endemic)
Buchanan, J. 1871 ("1870"): On some New Species and Varieties of New Zealand Plants. Transactions and Proceedings of the Royal Society of New Zealand 3: 208–212.
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. [Not Threatened]
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]
Kirk,T. 1899: The Students' Flora of New Zealand and the Outlying Islands. Government Printer, Wellington, N.Z.