Nomenclature
Scientific Name:
Coprosma petiolata Hook.f., J. Proc. Linn. Soc., Bot. 1: 128 (1856)
 Description

Shrub or tree up to 6 m. tall, sts depressed on exposed coastal rocks (with rolled lvs); branches with rough dark to light grey bark; branchlets slender, pubescent. Lvs on slender pubescent petioles 5–16 mm. long. Stipules short, triangular, pubescent, acute. Lamina coriac., light green, glossy, elliptic-oblong to obovate, obtuse, cuneatly narrowed to base, "of male plant 41 by 23, 34 by 20, petiole 5 mm, of female plant usually larger, 61 by 29, 52 by 25, petiole 5–16 mm." Margins recurved, reticulated veins evident below. ♂ clustered on slender peduncles 5–10 mm. long; calyx 0; corolla funnelform, lobes oblong-triangular, acute, ± = tube. ♀ us. 3 together on slender pubescent peduncles; calyx-teeth very short; corolla-tube broadly tubular, long, lobes subacute, < tube. Drupe reddish, ovoid, "smaller ones ovoid, 7 by 6, 9 by 7·5 mm., larger ones compressed, more or less distinctly 2-lobed, 10 by 10 mm."

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

 Biostatus
Indigenous (Endemic)
 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Naturally uncommon]
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. [Naturally Uncommon]
Hooker, J.D. 1856: On the Botany of Raoul Island, one of the Kermadec group in the South Pacific Ocean. Journal of the Proceedings of the Linnean Society. Botany. 1(3): 125–129.
Kirk,T. 1899: The Students' Flora of New Zealand and the Outlying Islands. Government Printer, Wellington, N.Z.