Psammagrostis wiseana C.A.Gardner & C.E.Hubb.

 ALA  NSL [legitimate]
Public View
Gardner, C.A. & Hubbard, C.E. (September 1938), Hooker's Icones Plantarum 34(3): t. 3361

Nomenclature

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Nightingale, M.E., Lally, T.R. & Weiller, C.M. in Mallett, K. (ed.) (2005), Psammagrostis. Flora of Australia 44B: 411-412, Fig. 73F-J
 APC
 NSL
  Nightingale, M.E., Lally, T.R. & Weiller, C.M. in Mallett, K. (ed.) (2005), Psammagrostis. Flora of Australia 44B: 411-412, Fig. 73F-J
 APC
 NSL

Specimens

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Description

Ephemerals. Culms 4–35 cm long; flowering culms 10–20 cm high, 4–7 (–12)-noded. Leaves: basal sheaths tuberculate, glabrous or pubescent, with glabrous margins; orifice pubescent; ligule 0.2–0.5 mm long; blade flat or involute, 0.3–5 cm long, 1.3–2.5 mm wide, stiff. Inflorescences 2.5–5 cm long; spikelet-bearing axes 3–10 mm long. Spikelets oblong, 4–8.5 mm long. Glumes: lower glume 1.3–2.5 mm long; upper glume 2.1–3 mm long. Basal lemma ovate to oblong, 2.1–3.3 mm long, glabrous or pubescent (with sparse, gland-tipped hairs). Palea ±equal to the lemma body, oblong to obovate; keels ciliolate (the hairs c. 0.1 mm long). Grain oblong to elliptic, not compressed, 1 mm long, 0.4 mm wide.

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Phenology

Flowers only after good winter rains, in average orbetter seasons; fruits in late winter.

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Distribution

Occurs in the sublittoral areas between the Gascoyne and Minilya Rivers (N of Carnarvon, W.A.) in the eremaean region. 

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Habitat

Grows on red sanddunes with Acacia aneura, Eremophila forrestii, Cassia desolata, Eriachne sp., Enteropogon  ramosus, Diplopeltis sp., Pityrodia and Calothamnus. 

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Representative Herbarium Specimens

W.A.: Boolathana sheep grazing trial area, 40 km NNE of Carnarvon, 19 July 1988, J.Stretch s.n. (CANB).

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Notes

The florets are somewhat loose, with the clavate-tipped internodes of the flexuose rachilla exposed.

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Illustrations

Illustration: C.A.Gardner, Fl. W. Australia 1: 112, pl. 32B (1952).

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Source

Flora of Australia Volume 44B

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© Copyright Commonwealth of Australia, 2024
Last updated: System; Feb 20, 2020 12:40 Status: Legacy

Author - M.E.Nightingale, T.R.Lally, C.M.Weiller

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Cite this profile as: M.E.Nightingale, T.R.Lally, C.M.Weiller. Psammagrostis wiseana, in (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Psammagrostis%20wiseana [Date Accessed: 14 March 2025]