Zuloagaea bulbosa* (Kunth) Bess, Syst. Bot. 31(4): 666 (2006)
Classification. (GPWG 2001) : Subfamily Panicoideae. Paniceae.
Common name: Bulbous Panic, Texas Grass
Replacement Name: Panicum
bulbosum H. B. & K., Nov. Gen. Sp. 1: 99 (1815).
Type of Basionym or
Protologue Information: HT: F.W.H.A. von Humboldt & A.J.A. Bonpland
4250, Sep, Mexico: Guanajuato:
(P-Bonpl.; IT: US-2907467 (fragm. & photo ex P)).
(books and floras):  D.Sharp & B.K.Simon, AusGrass, Grasses of
 S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South
 S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
Wales, 4th edn (314 as Panicum).
Perennial. Rhizomes absent or present. Stolons absent. Culms erect, 30–150 cm
tall, 3–8 -noded. Mid-culm internodes glabrous. Mid-culm nodes glabrous.
Lateral branches sparsely branched. Leaf-sheaths smooth or antrorsely scabrous.
Leaf-sheath auricles absent. Ligule a fringed membrane, a ciliolate membrane,
0.5–1 mm long. Leaf-blades linear, 20–60 cm long, 3–15 mm wide. Leaf-blade
surface smooth or scabrous.
Inflorescence compound, a panicle. Panicle ovate, 12–50 cm long, evenly
furnished or with spikelets clustered towards branch tips.
Spikelets 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, elliptic or oblong,
dorsally compressed, 3–4.2 mm long. Rhachilla internodes brief up to lowest
thinner than fertile lemma. Lower glume ovate, membranous, without keels, 3
-nerved. Lower glume apex muticous. Upper glume elliptic or ovate, 3–3.5 mm
long, membranous, without keels, 5 -nerved. Florets. Basal sterile
florets 1, male or barren, with palea. Lemma of lower sterile floret 100 % of
length of spikelet, membranous, 5 -nerved, muticous or mucronate.
Fertile lemma 2.8–4 mm
long, without keel. Lemma apex muticous. Anthers 3.
Distribution: Australasia, North America, and South
Distribution: New South Wales.
South Wales: North Coast, Central
The obscurely transverse rugose or wrinkled surface of the upper floret is very
unusual for Panicum.
Introduced; Native to
semi-arid regions of SW United States where it
is occasionally cultivated as a forage species. In temperate wet sclerophyll
forests, dry sclerophyll forests, temperate sub-humid woodlands, and semi-arid
shrub woodlands. Flowers Nov.-Apr.