Pterostylis grandiflora R.Br.

Cobra Greenhood

Prodr. 327 (1810) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Flowering plant to 40 cm tall, stem leaves 4–9. Rosette leaves 4–9, ovate, 0.5–2 cm long, 0.3–1 cm wide, petiolate, margins crisped. Flower 2.7–3.5 cm long, erect, green and white with deep red-brown suffusions in the galea; dorsal sepal acuminate to long-acuminate, decurved; lateral sepals erect, tightly embracing the galea, sinus flat or raised, protruding like a platform when viewed from the side, free points 3–5 cm long, filiform, erect; petal margins widely flared. Labellum oblong-ovate in basal half, suddenly tapered to a long linear-filiform section, 17–22 mm long, 3–3.5 mm wide, expanded and brown at the apex, the distal half protruding from the sinus in the set position. Flowers May–Aug.

EGL, EGU, GipP, Gold, HSF, Strz, WPro. Also Qld, NSW, Tas. Generally restricted and uncommon in near-coastal eastern Victoria, growing on moist, shady slopes in open-forest, on well-drained soil.

Source: Jones, D.L. (1994). Pterostylis. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Updated by: Jeff Jeanes, 2015-06-16
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Pterostylis
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Pterostylis grandiflora in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pterostylis grandiflora in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present native
Goldfields present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Wilsons Promontory present native
Highlands-Southern Fall present native
Strzelecki Ranges present native

State distribution

Distribution map
New South Wales
Australian Capital Territory