Paspalidium flavidum

(Retz.) A.Camus
in H. Lecomte, Fl. Indo-Chine 7: 419 (1922)
Taxonomic status Accepted
Occurrence status Present
Origin Introduced
Degree of establishment Adventive

Rhizomatous or shortly stoloniferous perennial forming loose tufts. Culms ascending to erect, to c. 40 cm high. Leaves sheaths glabrous; blade flat to inrolled, to 10 cm long and 6 mm wide, glabrous; ligule 0.2–0,5 mm long. Panicle 6–15 cm long; branches (10–15 mm long) remaining appressed to the narrowly winged main axis, scabrous on the angles; pedicels scabridulous. Spikelets 2–2.3 mm long; lower glume smooth and glabrous, broadly ovate, 1.2–1.5 mm long, 3-nerved (rarely 5-nerved), the nerves not coalescing or coalescing below the apex; upper glume broad-elliptic, 5–7-nerved, 1.8–2 mm long, slightly shorter than the spikelet, firm-textured and opaque; lower lemma 5-nerved, as long as spikelet; palea of lower floret about half as long as lemma, narrow and thinly membranous; upper lemma ovate, equal or slightly shorter than lower. somewhat constricted toward base, minutely apiculate, hardened, finely transversely ridged, margins as hard as body, recurved; palea subequal to lemma, hardened, granular, slightly bulging above base. Flowers Dec.–Mar.

VVP, GipP, OtP, CVU. Recorded a few times in the 1920s from Werribee, Bacchus Marsh and Bundoora, habitat unknown. More recently (2008) collected from near Epping where occurring in a degraded Eucalyptus camaldulensis woodland remnant on a rocky rise.

Distinctive amongst most other Victorian species in the lower floret having a well-developed (but membranous) palea, the firm-textured lower lemma and the narrowly winged inflorescence rachis. Native to northern Australia through south-eastern Asia. Probably an introduction in Victoria and possibly associated with trials of native fodder grasses, but apparently not persisting.

Created by: Neville Walsh, 11 Mar. 2016
Paspalidium flavidum (distribution map) Spinning