Cymbopogon globosus

Cymbopogon globosus Henrard. Repert.
Spec. Nov. Regni Veg
22: 106 (1925).

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

Type of Basionym or
Protologue Information
: HT: Atjeh 61, Moluccas: Taliabu Island
(Soela) (L-920.160–280; IT: BO).

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

Perennial. Culms erect, 100–200 cm tall. Mid-culm internodes glabrous.
Leaf-sheaths glabrous on surface. Ligule an eciliate membrane, 2–5 mm long.
Leaf-blades flat, 30–60 cm long, 3–8 mm wide. Leaf-blade surface glabrous.

Inflorescence compound, composed of rames. Central inflorescence axis 6–13 cm
long. Rhachis fragile at the nodes.

Spikelets sessile, 1 in the cluster. Companion spikelets pedicelled, 1 in the
cluster. Basal sterile spikelets well-developed, 2 in number (lower raceme).
Companion spikelets developed, comprising 2 subequal glumes without lemmas, 2–4
mm long. Companion spikelet glumes muticous. 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,
lanceolate or ovate, dorsally compressed, 4–5 mm long.

Glumes. Glumes
dissimilar, firmer than fertile lemma. Lower glume lanceolate, chartaceous,
keeled, 2-keeled, wingless or winged on keel, winged narrowly, 3–4 -nerved.
Upper glume lanceolate, keeled, 1-keeled, 3 -nerved. Florets. Basal
sterile florets 1, barren, without significant palea. Lemma of lower sterile
floret hyaline.

Fertile lemma without
keel. Lemma apex lobed, awned, 1 -awned. Median (principal) awn from a sinus,
11–19 mm long overall, with a twisted column. Palea absent. Anthers 3. Grain
1.5 mm long.

: Australasia.

: Queensland.


Known from savanna regions of northern Qld (uncommon) through New Guinea to the
Moluccas. Flowers 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