Pterostylis aciculiformis (Nicholls) M.A.Clem. & D.L.Jones

in M.A.Clem., Cat. Austral. Orchid. (Austral. Orchid Res. 1) 118 (1989) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: data deficient (k)

Flowering plant to 25 cm tall, stem leaves 3–6, closely sheathing. Rosette leaves 5–12, oblong to elliptic, 1–3 cm long, 5–12 mm wide, margins entire. Flowers 1–12, 13–16 mm long, transparent with green and tan suffusions, semi-nodding; dorsal sepal with an upcurved filiform point to 1.5–3 mm long; lateral sepals swept back, conjoined part elliptic in outline when flattened, shallowly concave, margins incurved, glabrous, free points 4–7 mm long, parallel; petals with a poorly developed proximal flange. Labellum oblong, c. 4 mm long, c 2 mm wide, thick; marginal hairs in 5–12 pairs, 1–2.5 mm long, white, basal lobe hardly raised, with numerous white hairs c. 0.5 mm long. Flowers Sep.–Dec.

CVU, DunT, Glep, Gold, GGr, HSF, LoM, NIS, Wim. Also NSW, ACT. Scattered across northern Victoria mostly in drier open forest, sometimes in mallee scrub, on shallow stony or gravelly soil.

Similar to P. pusilla, but that species is predominantly from mallee communities, has larger petal flanges and more incurved lateral sepal margins.

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, 2015-06-02
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Distribution map

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Pterostylis aciculiformis in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pterostylis aciculiformis in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Wimmera present native
Glenelg Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
Highlands-Southern Fall present native

State distribution

Distribution map
State
Western Australia
South Australia
New South Wales
Australian Capital Territory
Victoria