Rytidosperma richardsonii (Cashmore) Connor & Edgar

New Zealand J. Bot. 17: 332 (1979) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Densely tufted perennial. Culms to 80 cm high. Leaves glabrous; blade folded or loosely inrolled, to 35 cm long and 3 mm wide. Panicle compact, lanceolate to ovate in outline, mostly 4–10 cm long. Spikelets often tinged purplish when young, 4–6-flowered; glumes subequal, rather broad, shortly acuminate, 10–15 mm long; lemma obovate to triangular in outline, 4–6 mm long, rather prominently longitudinally veined, densely and more or less evenly covered by hairs commencing c. 1 mm above the callus tuft, increasing slightly in length from lower to upper, the uppermost usually 4–5 mm long and inserted c. 1 mm below the sinus; lateral lobes erect, 4–7 mm long, membranous and rather broad near base, tapering rather abruptly into the 1–2 mm long setiform tips or the setae sometimes absent; central awn pale, exceeding lateral lobes by up to 4 mm, not or loosely once-twisted at base; palea broadly obovate, equal to or exceeding sinus by up to 1 mm. Flowers Nov.–Dec.

NIS, VRiv, VVP. Also SA (where probably naturalised), NSW. Recorded from grassy woodlands in a few localities in north-east Victoria (e.g. Barnawartha, Dookie, Rutherglen, Springhurst and Yarrawonga). The type specimen of this species was from a plant propagated from wild-collected seed purportedly from Werribee (Vickery 1956). However the only specimen of Rytidosperma richardsonii at MEL from southern Victoria is from the grounds of Geelong Grammar School at Corio (where possibly cultivated) and not known from there since 1961.

Most earlier records listed for R. richardsonii (e.g. Willis 1970) were based on incorrectly identified specimens of the superficially similar R. bipartitum.

Source: Walsh, N.G. (1994). Poaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne (as Danthonia richardsonii Cashmore).
Updated by: Val Stajsic, 2017-09-07
 
References

Vickery, J.W. (1956). A revision of the Australian species of Danthonia DC., Contributions from the New South Wales National Herbarium 2: 281.

Willis, J.H. (1970). A handbook to plants in Victoria: ferns, conifers and monocotyledons, Melbourne University Press, Carlton.

Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Rytidosperma
Higher taxa

Victoria

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

State distribution

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