Poa physoclina N.G.Walsh

Wind-flattened Tussock-grass

Muelleria 26 (2): 17 (2008) APNI

Taxonomic status:Accepted

Occurrence status:Endemic

Establishment means:Native

Threat status:Victoria: vulnerable (v); listed in Flora and Fauna Guarantee Act 1988

Tufted perennial, culms initially erect, to c. 40 cm high, but weak and soon laid flat by wind, mostly without nodes above basal sheaths.. Leaf blades 10–25 cm long, 0.2–0.4 mm diam; closely folded, usually biconvex to nearly circular in section, usually minutely pilose with minute (<0.2 mm long) scattered to mid-dense, antrosely inclined hairs; ligule truncate, c. 0.3 mm long. Inflorescence at maturity an open pyramidal panicle to c. 12 cm long and wide. Spikelets 2- or 3-flowered, 3.5–6 mm long, green or purplish; glumes 3-nerved, the lower 2–3 mm long, the upper 2.5–3.5 mm long; lemma 5-nerved, 3–4.1 mm long, usually shortly and evenly hairy in the lower half to two-thirds, glabrous between the nerves; web rather sparse, to 1.5 mm long.

DunT, VVP. Apparently confined to margins of salt lakes of the Volcanic Plain (e.g. Lake Bolac, Camperdown, Derinallum, Lismore, Skipton areas) where often dominant within a distinc zone just upslope of the typically associated halophytic shrubland/herbfield.

Created by: Neville Walsh, 2016-03-29
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Poa
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Poa physoclina in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Poa physoclina in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present native
Dundas Tablelands present native

State distribution

Distribution map