Pterostylis lustra D.L.Jones

New Taxa Austral. Orch. (Austral. Orchid Res.) 5: 87 (2006) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: endangered (e); listed in Flora and Fauna Guarantee Act 1988

Flowering plant to 20 cm tall, stem smooth. Rosette leaves 3–5, ovate-lanceolate to elliptic, 2–6 cm long 0.8–1.5 cm wide, scattered on the basal part of the stem, sessile, margins entire. Flower 3–4.5 cm long, erect or semi-nodding, dark green and white; galea apex more or less flat to semi-erect; dorsal sepal acuminate, slightly longer than the petals; lateral sepals erect, loosely embracing the galea leaving a lateral gap, sinus deeply v-shaped when viewed from the front, protruding in a shallow curve when viewed from the side, free points linear-tapered, 2–3 cm long, erect or recurved; petals narrow, subacute. Labellum narrowly ovate-lanceolate, 15–25 mm long, 3–3.5 mm wide, brown, curved forwards in the distal half, subacute to obtuse, distal third protruding from the sinus in the set position. Flowers Nov.–Feb.

CVU, DunT, EGL, GipP, HSF, OtP, Strz, VVP, WaP, WPro. Also SA, Tas. Widespread and sometimes locally common, growing in swampy areas under thickets of Leptospermum lanigerum (Woolly Tea-tree), on permanently wet, black alkaline mud.

Confused with Pterostylis falcata, but that species frequents different habitats, has larger flowers with a horizontal or decurved galea.

Created by: Jeff Jeanes, 2015-06-16
Updated by: Val Stajsic, 2018-02-15
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Pterostylis
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Pterostylis lustra in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pterostylis lustra in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Central Victorian Uplands present native
Dundas Tablelands present native
East Gippsland Lowlands present native
Wilsons Promontory present native
Highlands-Southern Fall present native
Strzelecki Ranges present native

State distribution

Distribution map
State
South Australia
Victoria
Tasmania