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Species
Rottboellia cochinchinensis (Lour.) W.D. Clayton
IUCN
NCBI
EOL Text
Africa, Nepal, tropical Asia, Malaysia, Australia.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200026228 |
A good fodder grass but not common.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200026228 |
Annuals, Terrestrial, not aquatic, Prop roots present, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stems branchi ng above base or distally at nodes, Stem internodes solid or spongy, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 m tall, Stems with inflorescence 2-6 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath hairy, hispid or prickly, Leaf sheath and blade differentiated, Leaf sheath enlarged, inflated or distended, Leaf blades linear, Leaf blades 1-2 cm wide, Leaf blades 2 or more cm wide, Leaf blades mostly flat, Leaf blades more or less hairy, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with narrowly racemose or spicate branc hes, Inflorescence single raceme, fascicle or spike, Inflorescence with 2-10 branches, Flowers bisexual, Spikelets pedicellate, Spikelets sessile or subsessile, Spikelets dorsally compressed or terete, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets paired at rachis nodes, Spikelets in paired units, 1 sessile, 1 pedicellate, Pedicellate spikelet well developed, staminate, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating below the glumes, Spikelets disarticulating beneath or between the florets, Spikelets falling with parts of disarticulating rachis or pedicel, Spikelets closely appressed or embedded in concave portions of axis, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glumes keeled or winged, Glumes 3 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 3 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Palea membranous, hyaline, Palea longer than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.
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Rights holder/Author | Compiled from several sources by Dr. David Bogler, Missouri Botanical Garden in collaboration with the USDA NRCS NPDC |
Source | http://plants.usda.gov/java/profile?symbol=ROCO6 |
Tall annual supported below by stilt roots, the basal sheaths painfully hispid; clums 30 cm to 3 m high. Leaf-blades broadly linear, up to 45 cm long and 2 cm wide. Raceme 3-15 cm long, glabrous, terminating in a tail of reduced spikelets, gathered into a spatheate false panicle. Sessile spikelet oblong-elliptic, pallid; tower glume 3.5-5 mm long; upper glume with the keel narrowly winged towards the tip. Pedicelled spikelet narrowly ovate, 3-5 mm long, herbaceous, green; pedicel shorter then the internode.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200026228 |
Rhizome elongated. Culms tufted, about 5 mm across. Blade up to 30 cm long by 6 mm wide. Inflorescence of a single raceme, about 10 cm long. Spikelets paired, dimorphic; rachis-joint swollen and fused together with pedicel of more or less reduced upper spikelet. Lower spikelet sunken in a cylindrical rachis-joint, about 4.2 mm long; lower glume coriaceous, broadly lanceolate, as long as the spikelet, 7-9-nerved, tessellate nerved on upper part; upper glume of the same texture, entirely sunken in the cavity of the rachis-joint, boat-shaped, numerous nerved. Lower floret oblong, as long as the glume; lemma 3-nerved, chartaceous, margins slightly folded and membranous; palea subcoriaceous, margins folded and membranous. Upper floret membranous; lemma broadly deltoid, margins folded; palea lanceolate or deltoid, 2-3 mm long.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026228 |
90-150 m
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200026228 |
Coarse annual. Culms stout, 1–3 m tall, 5–10 mm in diam., supported below by stilt roots, branched in upper part. Leaf sheaths tuberculate-hispid with stiff irritant hairs or sometimes glabrescent; leaf blades linear-lanceolate, 20–50 × 0.5–2.5 cm, glabrous or adaxial surface hispidulous, very scabrid along margins, midrib broad, white, apex acuminate; ligule a ciliate membrane, ca. 1 mm. Racemes yellow and green, 6–15 × 0.25–0.4 cm, stiff, terminating in a green tail of reduced spikelets; rachis internodes 4–6 mm, rounded on back, slightly longer than adjacent pedicel. Sessile spikelet pale yellow, 5–6 mm; lower glume ovate, minutely scaberulous on back, keeled only toward entire or very minutely 2–3-toothed apex; lower lemma as long as upper lemma. Pedicelled spikelet green, variable, 3–5 mm, narrowly ovate, herbaceous. Fl. and fr. Jul–Oct.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242414244 |
"Annuals. Culms 45-140 cm high, supported below by stilt roots; nodes glabrous. Leaves 10-45 x 0.4-1.5 cm, oblong-linear or linear-lanceolate, base narrowed, apex acuminate, flat; sheaths densely pubescent, to 11 cm long; ligules ovate, membranous. Spikes 5-12 cm long, cylindric, terminating in a tail, jointed; rachis obliquely fragile, crustaceous. Sessile spikelets 3-4 mm long, ovate, sunken in cavities of joints; lower glume 3-5 x 2-3 mm, ovate, coriaceous; upper glume 3-5 x 2-4 mm, boat-shaped, coriaceous; lower floret male; upper floret bisexual; first lemma 3-5 mm long, elliptic; palea 3-4 x 2 mm, ovate-lanceolate; stamens 3; second lemma 3-4 x 2-3 mm, boat-shaped; palea ovate; ovary oblong. Pedicelled spikelets 3-5 mm long, ovate-lanceolate; glumes green; lemmas hyaline."
Tall annual grass, up to 1-4 m, taller specimens often supported by stilt roots. Leaves linear, up to 45 × 2 cm, with harsh prickly hairs on the leaf sheaths Inflorescence 1-several spike-like racemes, cylindric, 3-15 cm long, hairless. Spikelets appear sunken into the main pedicel.
Rottboellia exaltata L. var. appendiculata Hack. In DC., Monogr. Phan. 6: 295. 1889; Honda, Monogr. 369. 1930.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026228 |