Eriochloa meyeriana (Nees) Pilg.
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Derivation
Eriochloa Kunth, in F.W.H.A.Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov.
Gen. Sp. 1: 94 (1816); from the Greek erion (wool) and chloa
(grass), referring to the hairy spikelets and pedicels.
meyeriana- in honour of Ernst Heinrich Friedrich Meyer (17911858). German botanist who collected in South Africa.
Published in
Pflanzenfam. 2nd edn, 14E: 56 (1940).
Habit
Perennial. Culms decumbent or sprawling, 30200 cm tall, rooting from lower
nodes. Ligule a fringe of hairs. Leaf-blades 525 cm long, 315 mm
wide.
Inflorescence
Inflorescence compound, a panicle. Panicle open, elliptic, 818 cm long,
contracted about secondary branches. Primary panicle branches bearing spikelets
almost to the base. Panicle branches secund. Raceme 1030, unilateral,
27 cm long, secondarily branched, secondary branches racemulose. Central
inflorescence axis 818 cm long. Rhachis angular, puberulous on surface.
Spikelet packing adaxial, irregular.
Spikelets
Spikelets solitary or in pairs. Pedicels oblong, 12 mm long. Fertile spikelets
2-flowered, comprising 1 fertile floret, lower floret sterile or male, upper
fertile, without rhachilla extension, elliptic, dorsally compressed, acute,
2.33.5 mm long, falling entire. Spikelet callus globular, incorporating
lowest rhachilla internode with adnate lower glume, glabrous.
Glumes
Glumes two, dissimilar, thinner than fertile lemma. Lower glume oblate or ovate
(rarely), 0.5(2) mm long, 1520(50)% of length of spikelet,
hyaline, 0-nerved. Lower glume apex truncate or cuspidate. Upper glume ovate,
100% of length of spikelet, membranous, 5-nerved. Upper glume surface glabrous
or pubescent. Upper glume apex acute.
Florets
Basal sterile floret 1, with palea. Lemma of lower sterile floret similar to
upper glume, ovate, 90% of length of spikelet, 5-nerved, glabrous or pubescent,
acute. Fertile lemma elliptic, 1.52.2 mm long, indurate. Lemma surface
granulose. Lemma margins involute. Lemma apex obtuse, mucronate. Palea involute,
indurate.
Continental Distribution:
Africa, Temperate Asia, Tropical Asia, Australasia.
Australian Distribution:
Queensland: North Kennedy, South Kennedy, Port Curtis, Leichhardt, Wide
Bay, Moreton.
Classification. (GPWG
2001):
Panicoideae: Paniceae
Notes
Introduced.
Inflorescence detail and spikelet (photo)
© Watson and Dallwitz 1998