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

Muelleria 8: 75 (1993) APNI

Taxonomic status:Accepted

Occurrence status:Endemic

Establishment means:Native

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

Flowering plant to 25 cm tall, stem leaves 3–5, closely sheathing. Rosette leaves 8–15, elliptic, 1.5–2.8 cm long, 6–9 mm wide. Flowers 1–15, c. 1.4 cm long, transparent with green or greenish-brown markings and suffusions; dorsal sepal with a straight or upcurved filiform point 6–9 mm long; lateral sepals deflexed, conjoined part broadly ovate in outline when flattened, flat or shallowly concave, margins slightly incurved, sparsely ciliate, free points filamentous, 12–15 mm long, deflexed, nearly parallel, c. 5 mm apart at the tips; petals with a poorly developed proximal flange. Labellum narrow-ovate, 4.5–5.5 mm long, c. 3 mm wide, brownish, thick; marginal hairs 6–8 pairs, to 3 mm long, white, spreading, basal lobe swollen, whitish, with 4 hairs c. 1.5 mm long. Flowers Nov.–Jan.

DunT, VVP. Very localized in Victoria where known from a few small populations growing amongst basalt rocks in stony rise grassland.

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, 2015-06-05
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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 basaltica in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pterostylis basaltica in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present native
Dundas Tablelands present native

State distribution

Distribution map