Prasophyllum elatum R.Br.

Tall Leek-orchid

Prodr. 318 (1810) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Flowering stem robust, 40–150 cm tall, purple-black to greenish. Leaf-blade to 100 cm long, rigid, wholly dark-purple to green. Flowers numerous, purple-brown to greenish and white, appressed to the rachis of the narrow 5–40 cm long spike; ovary elongate, cylindric, to 12 mm long, closely appressed to the rachis; sepals 8–12 mm long, lateral sepals united, erect, rather flat, ovate-lanceolate; petals falcate-lanceolate, to 10 mm long. Labellum erect, ovate, pale white or pinkish, only slightly recurved, crenulate and crisped in apical half; callus plate ovate, greenish, shortly obtuse, with ridged margins. Column appendages falcate-lanceolate, 4–5 mm long. Flowers Sep.–Dec.

Brid, CVU, DunT, EGL, EGU, GipP, Glep, GGr, HNF, HSF, LoM, MuM, OtP, OtR, VRiv, VVP, WPro, Wim. All States except NT. Found in forest, woodland, heath and mallee-heathland. Flowers Sep.-Dec. Widely scattered, mostly across southern Victoria in open forests, heathy forests and heathlands in well-drained sandy soils.

Flowering is observed more often after fires.

The tallest terrestrial orchid in Victoria.

Purple-black and green plants often occur together in about equal numbers.

Prasophyllum elatum is closely related to P. flavum, which has a much shorter leaf-blade, yellower flowers and incurved labellum margins. Prasophyllum elatum also flowers earlier, forms larger populations and lacks the powerful fragrance of P. flavum.

Source: Bates, R.J. (1994). Prasophyllum. 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: Val Stajsic, 2018-02-15
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Orchidaceae
genus Prasophyllum
Higher taxa

Victoria

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

State distribution

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