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Synonyms: |
Andropogon arundinaceus Willd. Andropogon sorghum subsp. effusus (Hack.) Piper Andropogon sorghum var. effusus Hack. Andropogon sorghum (L.) Brot. Andropogon stapfii Hook. f. Andropogon verticilliflorum Steud. Rhaphis arundinacea Desv. Sorghum bicolor (L.) Moench subsp. arundinaceum (Desv.) deWet & Harlan Sorghum halepense sensu Simon, non (L.) Pers. Sorghum pugionifolium Snowden Sorghum stapfii (Hook.f.) C.E.C. Fisch. Sorghum sudanense sensu Hall-Martin & Drummond, non (Piper) Stapf. Sorghum verticilliflorum (Steud.) Stapf |
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Description: |
Annual, rarely short-lived perennial; culms 30–400 cm high, robust, branched; nodes mostly glabrous, sometimes pubescent; leaf sheaths glabrous; ligule a membrane, edged with a fringe of fine hairs and hairy on the back; leaf laminas variable, often large, 5–75 cm × 5–7 mm, broadly lanceolate, flat, glabrous on both surfaces, with a prominent whitish midrib. Panicle 10–60 cm long, broadly spreading; main axis angular, glabrous; primary branches divided, pubescent at the nodes; racemes 2–7-jointed; rhachis internodes and pedicels pilose. Sessile spikelet (4)7(9) mm long, lanceolate to narrowly ovate; glumes coriaceous; inferior glume dorsally compressed, narrowly ovate, 2-keeled on the margins, the keels winged, the wings not or scarcely broadened above and ending in minute teeth well below the glume apex, the latter not equally 3-toothed, white-pubescent, sometimes tomentose or fulvously pubescent, slightly depressed longitudinally on the back; superior glume glabrescent or with sparse hairs on the back; inferior floret empty, its lemma c. 5.5 mm long, lanceolate, ciliate on the margins; superior floret bisexual, its lemma c. 3 mm long, deeply lobed, ciliate on the lobes and margins, awned; awn up to 20 mm long, glabrous; palea c. 2 mm long. Pedicelled spikelets neuter, c. 6.5 mm long, linear to lanceolate; glumes chartaceous; inferior glume glabrous; superior glume slightly shorter than the inferior, glabrous; inferior lemma glabrous, with a truncate apex. |
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Habitat: | Swampy soils, streamsides, disturbed places and old farmland |
Altitude range: | 50 - 1400 m |
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Worldwide distribution: | Throughout Africa, extending eastwards to Australia |
Zambian distribution (Flora Zambesiaca): | B,C,E,S |
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Insects associated with this species: | Gnophodes betsimena diversa (Larval foodplant) |
Spot characters: | Display spot characters for this species |
Literature: |
Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 52. Cope, T.A. (2002). Poaceae Flora Zambesiaca 10(4) Pages 23 - 25. (Includes a picture). Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 60. As Sorghum verticilliflorum Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 110. Roodt, V. (2015). Grasses & Grazers of Botswana and the surrounding savanna Struik Nature, South Africa Pages 188 - 189. As Sorghum bicolor subsp. arundinaceum (Includes a picture). Setshogo, M.P. (2000). Notes on the grass subtribe Sorghinae (Poaceae: Andropogoneae) in the Flora Zambesiaca area Kirkia 17(2) Page 139. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 145. |
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