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This species is accepted, and its native range is W. Tropical Africa to South Sudan and Zambia.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Annual; caespitose. Culms decumbent, or prostrate; 30-80(-100) cm long; 3-6(-8) -noded; rooting from lower nodes. Leaf-sheaths smooth; glabrous on surface. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 1-2 mm long; entire, or lacerate; truncate. Leaf-blades 7-19 cm long; 1-5 mm wide. Leaf-blade surface smooth, or scaberulous; rough adaxially. Leaf-blade margins scaberulous. Leaf-blade apex acute.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 13-30 cm long; 2.5-5 cm wide. Primary panicle branches appressed, or ascending. Panicle branches angular; smooth, or scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; angular; 1.5-2.5 mm long; scaberulous; tip cupuliform.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 6.5-9.25 mm long; 1.25-1.5 mm wide; falling entire. Spikelet callus glabrous; base truncate; attached obliquely.
Fertile
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 6.5-9.25 mm long; 1.25-1.5 mm wide; falling entire. Spikelet callus glabrous; base truncate; attached obliquely.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets similar; barren; without significant palea. Lemma of lower sterile floret subulate; 1.3-2.5 mm long; 0.2-0.3 length of spikelet. Lemma of upper sterile floret subulate; 1.3-2.5 mm long; 1 length of lower sterile floret. Fertile lemma elliptic; laterally compressed; 6.5-9.25 mm long; chartaceous; keeled; 5 -veined. Lemma midvein ciliate; hairy above. Lemma surface reticulate; glabrous, or hispidulous. Lemma margins involute. Lemma apex rostrate; awned; 1 -awned. Principal lemma awn straight, or flexuous; 70-170 mm long overall; limb scabrous. Palea elliptic; 1 length of lemma; chartaceous; 3 -veined; 1-keeled. Palea keels scabrous. Palea apex acute.
Morphology Reproductive morphology Flowers
Lodicules 2; lanceolate; membranous. Anthers 6. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; 4-4.75 mm long; dark brown. Disseminule comprising a floret.
Distribution
Africa: west tropical, west-central tropical, northeast tropical, and southern tropical.
Reference
Oryzeae. FZ.

[FWTA]

Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Culms 30–45 cm. high
Note
Normally behaving as an annual, but Jacques-Felix (l.c.) states that it will perennate if watered during the dry season
Ecology
In shallow pools on ironstone.

[FZ]

Gramineae, E. Launert. Flora Zambesiaca 10:1. 1971

Morphology General Habit
A weak caespitose annual.
Morphology Culms
Culms 30-80(-100) cm. tall, 3-6(-8)-noded, usually geniculately ascending or prostrate, producing aerial roots at the nodes, striate, smooth, glabrous.
Morphology Leaves Leaf sheaths
Leaf-sheaths usually shorter than the internodes, scarious, loose, striate, smooth, glabrous, shortly auricled and often bearded at the mouth; the lowermost often bladeless, scale-like, brownish.
Morphology Leaves Ligules
Ligule 1-2 (rarely more) mm. long, truncate, sometimes lacerate.
Morphology Leaves Leaf lamina
Leaf-laminae 7-19 x 0·1-0·5 cm., narrowly linear, tapering to an acute point, green often tinged with purple, flaccid, smooth or somewhat asperulous on the upper surface mainly along the margins, glabrous, finely nerved; the midrib distinct.
Morphology Reproductive morphology Inflorescences
Panicle 13-30 x 2·5-5 cm., very narrowly obconical, erect or very rarely nodding, dense; rhachis rather stout, obtusely angular, smooth, glabrous; branches usually somewhat appressed to the rhachis or obliquely ascending, angular, smooth or asperulous.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 1·5-2·5 mm. long, robust.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 6·5-9·25 x 1·25 x 1·5 mm., deciduous, obliquely attached to the pedicel, linear-oblong in lateral view.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reduced to a short rim which is entire or inconspicuously 2-lobed.
Morphology Reproductive morphology Inflorescences Bracts Lemma
Sterile lemmas very short, subulate or very narrowly triangular, acute, always appressed to the fertile floret; the inferior 1·3-2 mm., the superior 1·75-2·5 mm. long. Fertile lemma slightly shorter than the spikelet, cymbiform, asymmetrically oblong-linear in outline, chartaceous, pale-green or straw-coloured, with the nerves usually darker green; flanks glabrous and smooth or shortly hispid to scaberulous; keel usually softly ciliate mostly towards the apex; the apical lateral protrusions usually distinct; awn 7-17 cm. long, very slender, hardly more than 0·5 mm. in diam. at the base, straight or somewhat wavy in the upper 1/3, scabrous, pale-green to whitish.
Sterile
Sterile lemmas very short, subulate or very narrowly triangular, acute, always appressed to the fertile floret; the inferior 1·3-2 mm., the superior 1·75-2·5 mm. long.
Fertile
Fertile lemma slightly shorter than the spikelet, cymbiform, asymmetrically oblong-linear in outline, chartaceous, pale-green or straw-coloured, with the nerves usually darker green; flanks glabrous and smooth or shortly hispid to scaberulous; keel usually softly ciliate mostly towards the apex; the apical lateral protrusions usually distinct; awn 7-17 cm. long, very slender, hardly more than 0·5 mm. in diam. at the base, straight or somewhat wavy in the upper 1/3, scabrous, pale-green to whitish.
Morphology Reproductive morphology Inflorescences Bracts Palea
Palea about as long as the lemma, very narrow, similar to the lemma in consistency and indument, apex usually drawn out into a short point.

Native to:

Central African Repu, Chad, Congo, Guinea, Guinea-Bissau, Ivory Coast, Mali, Mauritania, Niger, Senegal, Sierra Leone, Sudan, Zambia, Zaïre

Introduced into:

Myanmar

Oryza brachyantha A.Chev. & Roehr. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Apr 1, 1962 Chevalier, A.J.B. [34616], Guinea K000795870
Chevalier, A. [24977], Mali K000345484
Sihuonen, J. [240], Burkina Faso K000392213

First published in Compt. Rend. Hebd. Séances Acad. Sci. 159: 561 (1914)

Accepted by

  • Aké Assi, L. (2002). Flore de la Côte-d'Ivoire: catalogue systématique, biogéographie et écologie. II Boissiera 58: 1-401.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.
  • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.
  • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
  • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.

Literature

Flora of West Tropical Africa

  • Berhaut, Fl. Sén. ed. 2, 416
  • Chev. Bot. 738
  • Jacques-Félix in J. Agric. Trop. 6: 586.
  • in Compt. Rend. Acad. Sci. 159: 561 (1914)
  • in Rev. Bot. Appliq. 12: 1022
  • in Rev. Bot. Appliq. 14: 133

Kew Backbone Distributions

  • Aké Assi, L. (2002). Flore de la Côte-d'Ivoire: catalogue systématique, biogéographie et écologie. II Boissiera 58: 1-401.
  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
  • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.
  • Lebrun, J.P. (1973). Énumération des plantes vasculaires du Sénégal: 1-209. Maisons Alfort: Institut d'élevage et de médecine vétérinaire des pays tropicaux.
  • Peyre de Fabregues, B. & Lebrun, J.-P. (1976). Catalogue des Plantes Vascularies du Niger: 1-433. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.

Flora Zambesiaca
Flora Zambesiaca
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Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0