Aristida leichhardtiana

Aristida leichhardtiana Domin. Repert.
Spec. Nov. Regni Veg. 9: 551 (1911).

Classification. (GPWG 2001) : Subfamily
Aristidoideae. Aristideae.

Type of Basionym or
Protologue Information
: HT: Leichhardt s.n., 10 Jan 1847, Australia: Queensland:
Port Curtis District:
Dry-beef Creek (K (photo, BRI); IT: BRI (fragm.), L, MEL).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
[2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South

[1983] J.C.Tothill & J.B.Hacker, Grasses of Southern Queensland
(106(23)), [2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses
of New South Wales
, 4th edn (129).

Derivation: L.
-ana, indicating connection. In honor of Friedrich Wilhelm Ludwig
Leichhardt (1813–1848) German-born physician.

and Australian

Perennial. Culms stature slender to delicate, 25–45 cm tall. Mid-culm
internodes glabrous. Lateral branches sparsely branched. Leaf-sheaths smooth or
scaberulous, glabrous on surface. Ligule a fringe of hairs, 0.5–1 mm long.
Leaf-blades straight, flat or conduplicate or involute or convolute, 6–12 cm
long, 1–1.5 mm wide.

Inflorescence compound, a panicle. Panicle elliptic, effuse, 5–8 cm long, 3–6
cm wide.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 9–12 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
keeled, 1-keeled, 1 -nerved. Upper glume lanceolate, 4.5–12 mm long, membranous,
keeled, 1-keeled, 1 -nerved. Upper glume surface smooth to scabrous. Upper
glume apex entire.

Fertile lemma 9–10.5 mm long, without keel, 3 -nerved. Lemma apex awned, 3
-awned. Median (principal) awn without a column. Lateral lemma awns present.
Palea without keels. Anthers 3. Grain 6.5 mm long.

: Australasia.

: Queensland, New South Wales.

Burnett, Darling Downs. New South Wales: North-Western
Slopes, Central-Western Slopes, North-Western Plains.

A. leichhardtiana differs from A. personata by the culms and
inflorescences being much smaller.

Queensland to the central tablelands of New South Wales. Eucalyptus
communities on rocky and sandy soils, occasionally on clay loams. Flowering and
fruiting October to July.

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