Psilurus incurvus*

Psilurus incurvus* (Gouan) Schinz & Thellung. Vierteljahrsschr. Naturf. Ges.
58: 40 (1913).

Classification. (GPWG 2001) : Subfamily Pooideae.
Tribe Poeae.

Basionym and/or
Replacement Name:
 Nardus incurva
Gouan, Hortus Monsp. 33 (1762).

Type of Basionym or
Protologue Information
: LT: J. Scheutzer, Agrostograpia t. 1, fig. 7K
, LT designated by Stace & Jarvis, Bot. J. Linn. Soc. 91:
441 (1985).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
(162), [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales
(359), [2009] A.Wilson (ed.). Flora of Australia,
Vol 44A. Poaceae 2 (347).

[1984] N.T.Burbidge. rev. S.W.L.Jacobs, Australian Grasses  (227), [2006] J.Jessop, G.R.M.Dashorst,
F.M.James, Grasses of South Australia  (161, fig. 114), [2008] S.W.L.Jacobs,
R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales, 4th edn
(359), [2009]. A.Wilson (ed.), Flora of Australia 44A: Poaceae 2
(345, Fig. 46).

Habit. Annual.
Culms erect, 7–45 cm tall. Ligule an eciliate membrane, 0.2–1 mm long.
Leaf-blades filiform, convolute, 15–65 cm long, 0.3–3 mm wide.

Inflorescence solid, a raceme. Racemes 1, straight or flexuous, smoothly
terete, 3–35 cm long. Rhachis fragile at the nodes (tardily).

Spikelets sessile. Fertile spikelets 1 or more flowered, with 1 fertile floret,
comprising 1 fertile floret(s), with a barren rachilla extension or with
diminished florets at the apex, linear, laterally compressed, 3.4–6.8 mm long.

Glumes. Glumes
thinner than fertile lemma. Upper glume ovate, 0.5–1.3 mm long, membranous,
without keels, 1 -nerved.

Fertile lemma 3.2–5 mm long, keeled, 3 -nerved. Lemma apex awned, 1 -awned.
Median (principal) awn apical or subapical, 2.3–5.5 mm long overall. Anthers 1.
Grain 3–4.5 mm long.

: Europe, Africa, Temperate Asia, Tropical Asia, and Australasia.

: South Australia, New South Wales, Victoria.

South Australia: Southern Lofty. New South Wales:
Southern Tablelands, South-Western Slopes. Victoria:
Grampians, Lowan Mallee, Midlands, Riverina, Wannon.

Notes. Native
to the Mediterranean. Dry, open habitats,
often on sandy or rocky soils. Flowers Oct.-Nov.


AVH 2011


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith