Pterostylis truncata W.Fitzg.

Brittle Greenhood

Austral. Orch. 1 (4): t. 3 (1878) 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 15 cm tall, stem leaves 2–5, closely sheathing. Rosette leaves 2–6, ovate to lanceolate, 1.5–3 cm long. 0.8–1.8 cm wide, petiolate, entire. Flower 3.5–4.5 cm long, semi-erect, white with green and brown stripes and suffusions; dorsal sepal acuminate, decurved near the apex; petal margins decurved; lateral sepals erect, tightly embracing the galea, sinus deeply v-shaped, slightly mounded to nearly flat when viewed from the side, free points 2.5–3 cm long, filiform, widely divergent, held obliquely forwards. Labellum narrowly ovate-lanceolate, 14–18 mm long, 3.5–4 mm wide, apex acute to subacute, red-brown, shallowly curved, distal quarter to third protruding from the sinus in the set position. Flowers Feb.–Jul.

CVU, GipP, HNF, HSF, VVP. Also NSW, ACT. Restricted to south central Victoria, within 100 km of Melbourne, in basalt plains grasslands and woodlands or granite outcrops, on well-drained soils.

This species is regarded as endangered in Victoria due to massive habitat loss and degradation.

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

Victoria

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

State distribution

Distribution map
State
New South Wales
Australian Capital Territory
Victoria