Paspalidium distans

Paspalidium distans (Trin.) D.K.Hughes. Bull.
Misc. Inform.
317 (1923). Classification. (GPWG 2001) : Subfamily
Panicoideae. Paniceae.

Basionym and/or
Replacement Name:
 Panicum distans
Trin., Sp. Gram. 2(15): , t. 172 (1829).

Type of Basionym or
Protologue Information
: LT: R. Brown 6098, Australia (BM; IT: BRI
(photo), K). LT designated by Blake, Proc. Royal Soc. Queensland 84: 66–67
(1973); cited in Veldkamp, Blumea 39: 376 (1994).

Recent synonyms:
P. radiatum, P. disjunctum S.T.Blake, Proc. Roy. Soc. Queensland  84: 65 (1973); P.scabrifolium
S.T.Blake, Proc. Roy. Soc. Queensland 84: 69 (1973).

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 Wales

[2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
, 4th edn (323).

Perennial. Rhizomes present. Culms erect or geniculately ascending, stature
slender to delicate, 30–70(–100) cm tall, 2–5 -noded. Mid-culm internodes
hollow. Mid-culm nodes glabrous. Lateral branches sparsely branched. Leaves
basal and cauline. Leaf-sheaths glabrous on surface. Ligule a fringed membrane
or a fringe of hairs, 0.5 mm long. Leaf-blades (5–)8–12(–18) cm long, 1–6.5 mm
wide. Leaf-blade surface scaberulous or scabrous, glabrous or indumented.

Inflorescence compound, a panicle of racemes. Racemes 4–10, appressed, 0.5–3 cm
long, 2–3 mm wide, bearing (4–)12(–20) fertile spikelets on each. Central
inflorescence axis 6–16 cm long.

Spikelets sessile or pedicelled. Fertile spikelets 2-flowered, the lower floret
barren (rarely male), the upper fertile, comprising 1 basal sterile florets,
comprising 1 fertile floret(s), without rachilla extension, ovate, dorsally
compressed, 1.7–2.2 mm long.

Glumes dissimilar, thinner than fertile lemma. Lower glume ovate to oblate,
membranous, without keels, 3–5 -nerved. Lower glume surface glabrous. Lower
glume apex muticous or mucronate. Upper glume ovate, 1.5–1.9 mm long,
membranous, without keels, 5–9 -nerved. Florets. Basal sterile florets
1, barren, without significant palea. Lemma of lower sterile floret 100 % of
length of spikelet, membranous, 5 -nerved.

Fertile lemma 1.8–2.2
mm long, without keel, 5 -nerved. Lemma apex mucronate. Anthers 3.

: Temperate Asia, Tropical Asia, Australasia, and Pacific.

: Western Australia, Northern Territory, Queensland, New South

Western Australia:
Gardner. Northern Territory: Darwin & Gulf. Queensland:
Burke, Burnett, Cook, Darling Downs, Leichhardt, Maranoa, Moreton, North
Kennedy, Port Curtis, South Kennedy, Wide Bay, Mitchell. New South Wales:
North Coast, Central Coast, South Coast, Northern Tablelands, North-Western

Specimens from northern areas generally have a relatively short upper glume.

In tropical and
subtropical wet sclerophyll forests, tropical and subtropical sub-humid
woodlands, semi-arid shrub woodlands, and arid and semi-arid low woodlands.
Flowers mostly Mar.-Aug.


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