Echinopogon ovatus (G.Forst.) P.Beauv. |
Common name
Forest Hedgehog Grass
Hedgehog Grass
Rough-bearded Grass
Derivation
Echinopogon P.Beauv., Ess. Agrostogr. 42, 148, 161, t. 9, fig
5 (1812); from the Greek echinos (hedgehog) and pogon (beard),
referring to the inflorescence.
ovatus- from the Latin ovum (egg) and -ata (possessing). Inflorescences, spikelets, or leaf-blades ovate in outline.
Published in
Ess. Agrostogr. 42, 148, 161 (1812).
Common synonyms
Echinopogon ovatus (G.Forst.) P.Beauv. var pubuglumis C.E.Hubb.
Habit
Perennial, culms solitary or tufted (loosely). Rhizomes elongated. Culms geniculately
ascending, 1050(120) cm tall, 37-noded. Mid-culm internodes
retrorsely scabrous. Lateral branches simple. Leaves cauline. Leaf-sheaths smooth
or retrorsely scabrous, glabrous on surface or pilose. Ligule an eciliate membrane,
2 mm long, truncate. Leaf-blades spreading or recurved, linear or lanceolate,
1.516 cm long, 28.5 mm wide. Leaf-blade surface smooth or scaberulous,
glabrous. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.
Inflorescence
Inflorescence solid, a panicle. Peduncle straight, retrorsely scabrous above.
Panicle capitate, oblong or ovate, 0.55 cm long, 12.5 cm wide.
Spikelets
Spikelets spreading, solitary. Pedicels oblong. Fertile spikelets 1-flowered,
comprising 1 fertile floret, with a barren rhachilla extension, oblong or obovate,
laterally compressed, (3)3.65.1 mm long, breaking up at maturity.
Spikelets disarticulating below each fertile floret.
Glumes
Glumes persistent, similar, thinner than fertile lemma. Lower glume lanceolate
or elliptic, 2.55 mm long, equalling upper glume, membranous, 1-keeled,
1-nerved, midnerve scabrous. Lower glume lateral nerves absent. Lower glume
margins eciliate or ciliolate. Lower glume apex obtuse or acute. Upper glume
lanceolate or elliptic or ovate, 35 mm long, 100% of length of adjacent
fertile lemma, membranous, 1-keeled, 13-nerved, midnerve scabrous, midnerve
ciliolate. Upper glume lateral nerves absent. Upper glume margins eciliate or
ciliolate. Upper glume apex obtuse or acute.
Florets
Fertile lemma lanceolate or oblong or ovate, 3.45 mm long, cartilaginous,
57-nerved. Lemma surface scaberulous, rough above. Lemma apex entire or
dentate, 2-fid, emarginate or acute, 1-awned. Median (principal) awn apical
or subapical, 315 mm long overall. Lateral lemma awns absent. Palea ovate,
100% of length of lemma, 2-nerved. Palea keels ciliolate, adorned above.
Palea apex acute. Anthers 3, 11.5 mm long. Ovary pubescent on apex. Grain
with adherent pericarp, oblong or ovoid, 22.5 mm long, hairy at apex.
Hilum linear.
Continental Distribution:
Tropical Asia, Australasia.
Australian Distribution:
Western Australia, South Australia, Queensland, New South Wales, Victoria, Tasmania.
Western Australia: Drummond, Menzies, Warren, Roe. South Australia: Flinders Ranges, Northern Lofty, Southern Lofty, Kangaroo Island, South-eastern. Queensland: Cook, North Kennedy, South Kennedy, Port Curtis, Leichhardt, Burnett, Wide Bay, Darling Downs, Moreton, Maranoa. New South Wales: North Coast, Central Coast, South Coast, Northern Tablelands, Central Tablelands, Southern Tablelands, Central-Western Slopes, South-Western Slopes, South-Western Plains. Victoria: Wannon, Grampians, Midlands, Otway Plain, Otway Range, Eastern Highlands, Gippsland Plains, Gippsland Highlands, Wilsons Promontory, Snowfields, East Gippsland. Tasmania: Furneaux Group, North West, North East, Central Highlands, Midlands, Ben Lomond, East Coast, South West, Mt Field.
Classification. (GPWG
2001):
Pooideae: Aveneae
Notes
Native. All States and Territories except the N.T., also in Lord Howe Is., New
Guinea and New Zealand. Widespread in wet sclerophyll woodland and by creeks.
Flowers Aug.Jan. Fruits Jan.May.
Young plants cause 'staggers' in stock.
Inflorescence (photo)
© Queensland Herbarium
Sharp 143 and Simon
by D.Sharp