Prasophyllum diversiflorum Nicholls

Victorian Naturalist 59: 8, figs A-L (1942) 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 stem 30–60 cm tall. Leaf-blade to 15 cm long and 4–10 mm diam. at base, mostly green, apex lax. Flowers 10–40, greenish with brownish markings, fragrant, in a moderately crowded spike 8–15 cm long; ovary obovoid, to 4 mm long; sepals 6–9 mm long, dorsal sepal ovate-lanceolate, acuminate, striated, lateral sepals free, divergent, lanceolate, erect, margins strongly incurved, tips bidentate; petals linear, 6–9 mm long, incurved or spreading, apex pale, acute to obtuse. Labellum on a short broad claw, white to pinkish, ovate, 6–9 mm long, concave throughout, margins crisped or undulate, compressed near bend; callus tongue-shaped, greenish, channelled, thickest at the bend, but extending well beyond, often verrucose. Column appendages pale, hatchet-shaped, to 3 mm long. Flowers Dec.–Jan.

Glep, VVP, WaP. Extremely rare, occurring in grassland and sedgeland on heavy black loamy soil prone to inundation. Known to persist only in a few small populations in south-west Victoria.

The type population from near Portland has been eradicated through clearing for agriculture.

Prasophyllum diversiflorum is part of the P. frenchii complex. It differs from other members of this complex in its late flowering period, laterally compressed labellum and more distinctly hatchet-shaped column appendages.

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: Jeff Jeanes, 2015-04-10
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 diversiflorum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Prasophyllum diversiflorum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present native
Victorian Volcanic Plain present native
Warrnambool Plain present native

State distribution

Distribution map
State
Victoria