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This species is accepted, and its native range is Tropical & S. Africa, Madagascar.
A specimen from Kew's Herbarium

[FTEA]

Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit
Annual.
Morphology Culms
Culms erect, 60–120 cm. high, spongy, usually 4 mm. or more in diameter.
Morphology Leaves
Leaf-blades up to 30 cm. long and 1 cm. broad; ligule 3–10 mm. long, soft, whitish, splitting longitudinally when dried, glabrous.
Morphology Reproductive morphology Inflorescences
Panicle loose, with spreading branches.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets elliptic, 4.9–6.2 mm. long and 1.9–2.6 mm. broad (2.5 times longer than broad), hispidulous; sterile lemmas acute, triangular; awn 1–7 cm. long, straight or somewhat flexuous, hispidulous.
Figures
Fig. 10/1–3, p. 29.
Habitat
Swampy soils by stream banks and pond margins, usually in the open; sea-level to 1200 m.
Distribution
tropical Africa from Ivory Coast and Sudan Republic to Angola and Rhodesia K7 P T1 T4 T6 U1 U2

[FWTA]

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

Morphology General Habit
Culms thick, spongy
Ecology
Swampy streamsides.

[FZ]

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

Morphology General Habit
A caespitose perennial.
Morphology Culms
Culms 50-120(-150) cm. tall, 3-5-noded, erect or geniculately ascending, branched, terete, striate, smooth, glabrous.
Morphology Leaves Leaf sheaths
Leaf-sheaths scarious, often spongy and aerenchymatous, distinctly striate, rather loose and often slipping off the culm, rounded or somewhat keeled in the upper part, auricled at the mouth, smooth, glabrous.
Morphology Leaves Ligules
Ligule 3-10 mm. long, rounded, truncate or somewhat acute, sometimes lacerate, glabrous.
Morphology Leaves Leaf lamina
Leaf-laminae 15-45 x 0·5-2·5 cm., linear to very narrowly elliptic, acuminate, usually broadest around the middle, pale-green or rarely glaucous, rather flaccid, expanded or folded around the midrib, usually asperulous on both surfaces; midrib distinct beneath, some nerves finer than others.
Morphology Reproductive morphology Inflorescences
Panicle 15-35 x 3-17 cm., narrowly to broadly elliptic or sometimes fan-shaped in outline, loose, erect, or drooping to some extent; rhachis obtusely angular, glabrous, smooth or inconspicuously scaberulous; branches spreading or ascending, solitary or sometimes adnate, angular, scabrous; pedicels 2-5 mm. long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets (5)5·5-6·25 + (2)2·25-2·8 mm. (the length usually 2·5 times the width), deciduous, transversely attached to the pedicel or nearly so, asymmetrically elliptic-oblong or broadly oblong in lateral view, greyish-green or glaucous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reduced to a membranous whitish narrow rim.
Morphology Reproductive morphology Inflorescences Bracts Lemma
Sterile lemmas about equal in shape and size, 1-1·5 mm. long, lanceolate to lanceolate-deltate, acuminate, glabrous. Fertile lemmas slightly shorter than the spikelet, cymbiform, semi-elliptic-oblong in lateral view, coriaceous; flanks finely tesselate, shortly but stiffly hispid or very rarely glabrous; keel and margins stiffly ciliate, lateral apical protrusions almost always distinct; awn (1)2-7·5 cm. long, very slender, flexuous, scaberulous, pale yellow.
Sterile
Sterile lemmas about equal in shape and size, 1-1·5 mm. long, lanceolate to lanceolate-deltate, acuminate, glabrous.
Fertile
Fertile lemmas slightly shorter than the spikelet, cymbiform, semi-elliptic-oblong in lateral view, coriaceous; flanks finely tesselate, shortly but stiffly hispid or very rarely glabrous; keel and margins stiffly ciliate, lateral apical protrusions almost always distinct; awn (1)2-7·5 cm. long, very slender, flexuous, scaberulous, pale yellow.
Morphology Reproductive morphology Inflorescences Bracts Palea
Palea slightly shorter than the lemma and much narrower but of the same consistency and indument, apex acute or tapering into a short acute point.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers oblong, pale-violet.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigmas blackish.
Morphology Reproductive morphology Fruits
Caryopsis 4-4·75 x 1·5-1·75 mm., oblong, glabrous, light brown.

[GB]
Morphology General Habit
Perennial; caespitose. Culms erect, or geniculately ascending, or decumbent; 50-120(-150) cm long; 3-6 mm diam.; spongy; 3-5 -noded. Leaf-sheaths smooth; glabrous on surface. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 3-10 mm long; entire, or lacerate; truncate, or obtuse, or acute. Leaf-blades 15-45 cm long; 1-25 mm wide. Leaf-blade surface scaberulous; rough on both sides. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic; 15-35 cm long; 3-17 cm wide. Primary panicle branches ascending, or spreading. Panicle branches angular; scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; angular; 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 elliptic; laterally compressed; 4.9-6.2 mm long; 1.9-2.6 mm wide (2.5 times longer than wide); falling entire. Spikelet callus glabrous; base truncate; attached transversely.
Fertile
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 4.9-6.2 mm long; 1.9-2.6 mm wide (2.5 times longer than wide); falling entire. Spikelet callus glabrous; base truncate; attached transversely.
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 lanceolate; 1-1.5 mm long; 0.2 length of spikelet; membranous; 1 -veined; without lateral veins; acute. Lemma of upper sterile floret lanceolate; 1-1.5 mm long; 1 length of lower sterile floret; membranous. Fertile lemma elliptic; laterally compressed; 4.9-6.2 mm long; coriaceous; keeled; 5 -veined. Lemma midvein spinulose. Lemma surface reticulate; glabrous, or hispid. Lemma margins involute. Lemma apex rostrate; awned; 1 -awned. Principal lemma awn straight, or flexuous; (10-)20-75 mm long overall; limb scabrous. Palea elliptic; 0.9 length of lemma; coriaceous; 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. Disseminule comprising a floret.
Distribution
Africa: west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, south, and western Indian ocean. Asia-tropical: Indo-China.
Reference
Oryzeae. FZ.

Native to:

Benin, Cameroon, Central African Repu, Chad, Congo, Ghana, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Nigeria, Sudan, Swaziland, Tanzania, Togo, Uganda, Zaïre, Zimbabwe

Oryza punctata Kotschy ex Steud. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schweinfurth, G. [2322], Sudan K000345477
Schweinfurth, G. [3691], Sudan K000345478
Kotschy [136], Sudan K000345479
Larsen, K. [9074], Thailand K000682219

First published in Syn. Pl. Glumac. 1: 3 (1853)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Bosser, J. (1969). Gramiées des pasturages et des cultures a Madagascar: 1-440. ORSTOM, Paris.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
  • 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.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
  • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
  • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.
  • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.

Literature

Flora of West Tropical Africa

  • Syn. Pl. Glum. 1: 3 (1854)
  • Tateoka in Bot. Mag. Tokyo 78: 156.

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
  • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
  • Launert, E. (1971). Flora Zambesiaca 10(1): 1-152. Royal Botanic Gardens, Kew.
  • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.

Flora of Tropical East Africa

  • A.V. Bogdan, A Revised List of Kenya Grasses p. 35 (1958).
  • D.M. Napper, Grasses of Tanganyika: 49 (1965).
  • Eggeling, Ann. list grasses Ug.: 29 (1947).
  • F. W. Andr., The Flowering Plants of the Sudan 3: 494 (1956).
  • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 43 (1960).
  • Steud., Syn. Pl. Glum. 1: 3 (1854).
  • Tateoka in Bot. Mag. Tokyo 78: 156 (1965).

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

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

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