Classification
Class
Magnoliopsida Brongn.
Order
Asparagales Link
Family
Orchidaceae Juss.
Genus
Pterostylis R.Br.
 Nomenclature
Scientific Name:
Pterostylis venosa Colenso, Trans. & Proc. New Zealand Inst. 28: 610 (1895 [1896])
Synonymy:
  • = Pterostylis trifolia Colenso, Trans. & Proc. New Zealand Inst. 31: 281 (1899)
  • = Pterostylis confertifolia Allan, Trans. & Proc. New Zealand Inst. 56: 32 (1926)
 Description

Plant c. 3–10 cm. tall at fl. Stem short, erect, smooth, us. half hidden by lvs until part below ovary elongates at fr. Lvs us. 2–3, all much alike, often equalling and sts overtopping fl.; lamina c. 3–6 × (1)–1.5–2.5 cm., orbicular to broad-oval, tip obtuse to broadly subacute, base narrowing to broadly winged, sheathing petiole. Fl. solitary; ovary us. erect. Dorsal sepal c. 1.5 cm. tall, erect then horizontal, acute to very shortly acuminate; lateral sepals diverging at a narrow angle, tips acuminate to shortly caudate, not greatly overtopping galea. Petals almost as long as dorsal sepal, broad almost to tip. Labellum narrow-triangular, arched and protruding, apex subacute, inner surface quite covered with short retrorse hairs giving an unusually furry appearance. Column us. shorter than labellum; stigma narrow-elliptic.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Nov.–Jan.

 Bibliography
Cockayne, L.; Allan, H.H. 1926: Notes on New Zealand floristic botany, including descriptions of new species, & c. (No. 4). Transactions and Proceedings of the New Zealand Institute 56: 21–33.
Colenso, W. 1896: Phænogams: A description of a few more newly-discovered indigenous plants; being a further contribution towards the making known the botany of New Zealand. Transactions and Proceedings of the New Zealand Institute 28: 591–613.
Colenso, W. 1899: Phænogams: A description of a few more newly discovered indigenous plants; being a further contribution towards the making known the botany of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 266–281.
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]
Jones, D.L.; Clements, M.A.; Molloy, B.P.J 2002: A Synopsis of the Subtribe Pterostylidinae. Australian Orchid Research 4: 129–146.