Classification
Class
Magnoliopsida Brongn.
Order
Asparagales Link
Family
Orchidaceae Juss.
Genus
Pterostylis R.Br.
 Nomenclature
Scientific Name:
Pterostylis foliata Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 249 (1853)
Synonymy:
  • = Pterostylis vereenae R.S.Rogers (1914)
  • = Pterostylis gracilis Nicholls (1927)
 Description

Plant c. 15–40 cm. tall. Stem c. 2 mm. diam., in some plants sparsely and unevenly puberulous; upper internodes us. longer than stem lvs. Lower lvs us. crowded but not forming well-defined rosette; lamina to c. 5 × 1 cm., often shorter, elliptic, subacute, gradually narrowed into short, winged petiole. Cauline lvs 1–2, often 2–3 cm. long, ± foliaceous, sheathing, the uppermost sts reaching but rarely overtopping fl. Fl. solitary, erect. Dorsal sepal c. 2 cm. tall, apex acute and ± horizontal; lateral sepals papillose on the connate portion (as is the ovary), diverging at a narrow angle, tips caudate and overtopping galea. Petals only a little shorter than dorsal sepal, broad almost to tip. Labellum narrow-triangular, arched and protruding, apex narrowly obtuse, margins slightly upturned. Column shorter than labellum; stigma elliptic, slightly prominent.

[From: Moore and Edgar (1970) Flora of New Zealand. Volume 2.]

 Biostatus
Indigenous (Non-endemic)
 Phenology

Flowering: (Sep.)–Oct.–Dec.

 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. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.
Jones, D.L.; Clements, M.A.; Molloy, B.P.J 2002: A Synopsis of the Subtribe Pterostylidinae. Australian Orchid Research 4: 129–146.