Pterostylis maxima M.A.Clem. & D.L.Jones

in M.A.Clem., Cat. Austral. Orchid. (Austral. Orchid Res. 1) 124 (1989) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Flowering plant to 35 cm tall, stem leaves 4–6, closely sheathing. Rosette leaves 6–12, ovate to obovate, 2.5–4 cm long, 8–18 mm wide, margins minutely ciliate. Flowers 2–8, porrect or semi-erect, c. 1.5 cm long, mostly dark red-brown with some transparent areas on the galea; dorsal sepal with a decurved filiform point 6–12 mm long; lateral sepals deflexed, conjoined part ovate to elliptic in outline when flattened, concave, margins slightly incurved, densely ciliate, free points filamentous, 25–35 mm long, curved forward, more or less parallel, c.10 mm apart at the tips; petals with a poorly developed proximal flange. Labellum obovate, 6–7.5 mm long, 3.5–4.5 mm wide, reddish-brown, thin-textured; marginal hairs 12–15 pairs, c. 0.5 mm long, white; basal lobe sloped backwards, with 2 prominent forward-pointing hairs c. 2.5 mm long. Flowers Oct.–Nov.

CVU, EGL, Gold, GGr, HNF, MuM, VRiv, Wim. Also NSW, SA. Scattered across northern and north-western Victoria in woodland, sparse open-forest and mallee scrub on well-drained soils.

See notes under P. cheraphila.

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, 2015-06-09
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 maxima in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pterostylis maxima in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Wimmera present native
Victorian Riverina present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
East Gippsland Lowlands present native
Highlands-Northern Fall present native

State distribution

Distribution map
New South Wales