Digitaria abyssinica*

Digitaria abyssinica* (Hochst. ex
A. Rich.) Stapf. Bull.
Misc. Inform.
213 (1907).

Classification. (GPWG 2001) : Subfamily
Panicoideae. Paniceae.

Basionym and/or
Replacement Name:
Hochst. ex A. Rich., Tent. Fl. Abyss. 2: 360–361 (1850).

Type of Basionym or
Protologue Information
: HT: W. Schimper U. i. 1840 Sect. primo, 82,
22 Sep 1837, Ethiopia: in fruticetis opacis ad radices septrionales montis
scholoda (P; IT: BR, K, L, US-1645178S, US-3298785, US-1063861 (ex B),
US-945058 (ex BM), WAG).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of

Perennial. Rhizomes present, elongated. Stolons present. Culms decumbent or
sprawling, stature slender to delicate, 5–60 cm tall, 2–6 -noded. Mid-culm
internodes glabrous. Mid-culm nodes glabrous. Leaf-sheaths glabrous on surface
or hairy. Leaf-sheath auricles absent. Ligule an eciliate membrane. Leaf-blades
linear or lanceolate, flat, 2–15 cm long, 3–10 mm wide. Leaf-blade surface

Inflorescence subdigitate, with racemose branches. Racemes 2–25, 2–11 cm long.
Central inflorescence axis 1–9 cm long.

Spikelets pedicelled, 2 in the cluster. 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, elliptic
or ovate, dorsally compressed, 1.5–2 mm long.

Glumes. Glumes
dissimilar, thinner than fertile lemma. Lower glume ovate or oblate,
membranous, without keels, 0–1 -nerved. Upper glume ovate, 1.4–1.8 mm long,
membranous, without keels, 3–7 -nerved. Upper glume surface glabrous. Florets.
Basal sterile florets 1, barren, without significant palea. Lemma of lower
sterile floret 100 % of length of spikelet, membranous, 7 -nerved.

Fertile lemma 1.5–2.5
mm long, without keel. Lodicules present.

: Africa, Temperate Asia, Tropical Asia, Australasia, Pacific,
and South America.

: Queensland.

Queensland: Moreton.

Introduced. Flowers Feb.-May.

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