Classification
Class
Magnoliopsida Brongn.
Order
Asparagales Link
Family
Orchidaceae Juss.
Genus
Pterostylis R.Br.
 Nomenclature
Scientific Name:
Pterostylis montana Hatch, Trans. & Proc. Roy. Soc. New Zealand 77: 239-240 (1949)
Synonymy:
  • = Pterostylis montana var. typica Hatch, Trans. & Proc. Roy. Soc. New Zealand 77: 239 (1949) nom. illeg.
 Description

Plant c. 3–30–(35) cm. tall at fl. Stem erect, smooth, internodes much < lvs. Lvs up to 6, the size changing from below upwards, the largest lf on a stem to c. 14–(18) × 1 cm., but often much smaller; all linear-lanceolate, acuminate, widest near sessile sheathing base and, except on smallest plants, ± overtopping fl. Fl. solitary, ovary us. erect. Dorsal sepal c. 2–2.5–3 cm. tall, tip ± horizontal, rather abruptly acute to shortly acuminate; lateral sepals diverging from a narrow angle, tips acuminate, separating from one another in young bud, not greatly exceeding galea in mature fl. Petals little shorter than dorsal sepal, broad almost to tip. Labellum oblong, little arched, broad almost to apex, there subacute and often twisted to one side (us. to right), the margins there deflexed as if pinched in about the prominent almost excurrent midrib. Column about as tall as labellum; stigma short, broad, oval to cordate, inclined to be prominent.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Nov.–Dec.–(Jan.)

 Bibliography
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]
Hatch, E.D. 1949: The New Zealand forms of Pterostylis R.Br. Transactions and Proceedings of the Royal Society of New Zealand 77(2): 234–246.
Jones, D.L.; Clements, M.A.; Molloy, B.P.J 2002: A Synopsis of the Subtribe Pterostylidinae. Australian Orchid Research 4: 129–146.