Digitaria basaltica B.K.Simon. Austrobaileya
9: 194 (2010).
Classification. (GPWG 2001) : Subfamily
Panicoideae. Paniceae.
Type of Basionym or
Protologue Information: Qld: Great Basalt Wall, 5 Apr 1995 R.J.Fensham
2183; holo: BRI; iso: CANB, K.
Habit.
Perennial. Culms erect, 70–90 cm tall, 3–51 -noded. Ligule an eciliate
membrane, 1.9–2.3 mm long. Leaf-blades 9–10 cm long, 3–5 mm wide. Leaf-blade
surface scabrous, indumented.
Inflorescence.
Racemes 14–17, 17–37 cm long, bearing 24–36 fertile spikelets on each. Central
inflorescence axis 10–14 cm long.
Spikelets.
Spikelets sessile and pedicelled, 2 in the cluster. Fertile spikelets
comprising 1 basal sterile florets, 1 fertile floret(s), without rachilla
extension, elliptic, dorsally compressed, 2.2–2.4 mm long.
Glumes.
Glumes similar to fertile lemma in texture, dull. Lower glume ovate,
membranous, 0 -nerved. Lower glume surface glabrous. Upper glume elliptic,
2.1–2.3 mm long, membranous, 1-keeled, 7 -nerved. Florets. Basal sterile
florets 1, barren, without significant palea. Lemma of lower sterile floret 1 %
of length of spikelet, membranous, 7 -nerved.
Fertile lemma 1.9–2 mm
long, without keel.
Continental
Distribution: Australasia.
Australian
Distribution: Queensland.
Queensland: North Kennedy.
