Hyparrhenia tamba (Hochst. ex Steud.) Andersson ex Stapf

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Synonyms: Andropogon lepidus Nees var. tamba (Steud.) Hack.
Andropogon tamba Steud.
Cymbopogon tamba (Hochst. ex Steud.) Rendle
Hyparrhenia glauca Stent
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Description:
Stout, caespitose perennial; culms up to 200 cm high and up to 4 mm in diameter at the base, without conspicuous stilt-roots. Basal leaf sheaths silky pubescent at the base, otherwise the sheaths glabrous; leaf laminas up to 80 cm × 3–7 mm, glabrous, stiff and harsh, scabrid on the margins and scaberulous on the nerves, strongly glaucous, rarely soft and green. False panicle 30–60 cm long, linear-oblong, lax; spatheoles 2.6–4 cm long, narrowly lanceolate, glabrous or sparsely pilose, turning glaucous brown; peduncles 2–3 cm long, 1/2–3/4 as long as the spatheole, pilose above with white hairs; racemes c. 1.5 cm long, 5–8-awned per pair, exserted laterally on the curved peduncles, tardily deflexed; raceme-bases subequal, the superior up to 1 mm long, flattened, stiffly barbate, the apex produced into a lobed scarious rim 0.2–0.5 mm long. Homogamous spikelets 8–9 mm long, a single pair at the base of the inferior raceme only, villous with white hairs. Sessile spikelets 4–5.5 mm long; callus c. 0.5 mm long, cuneate, subacute at the apex; inferior glume oblong-lanceolate, villous with white hairs, becoming dark purplish-grey at maturity; awn 16–25 mm long, the column shortly pubescent with tawny hairs. Pedicelled spikelets 7–8 mm long, villous with white hairs, muticous or with a short bristle up to 2 mm long at the apex; callus scarcely developed; pedicel-tooth obscure.
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Worldwide distribution: Botswana, DRP, Ethiopia, Kenya, South Africa, Sudan, Zimbabwe
Botswana distribution:
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Literature:

Cope, T.A. (2002). Poaceae Flora Zambesiaca 10(4) Pages 122 - 123.

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 105.

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 139.

Other sources of information about Hyparrhenia tamba:

Our websites:

Flora of Zimbabwe: Hyparrhenia tamba

External websites:

African Plants: A Photo Guide (Senckenberg): Hyparrhenia tamba
African Plant Database: Hyparrhenia tamba
BHL (Biodiversity Heritage Library): Hyparrhenia tamba
EOL (Encyclopedia of Life): Hyparrhenia tamba
GBIF (Global Biodiversity Information Facility): Hyparrhenia tamba
Google: Web - Images - Scholar
iNaturalist: Hyparrhenia tamba
IPNI (International Plant Names Index): Hyparrhenia tamba
JSTOR Plant Science: Hyparrhenia tamba
Mansfeld World Database of Agricultural and Horticultural Crops: Hyparrhenia tamba
Plants of the World Online: Hyparrhenia tamba
Tropicos: Hyparrhenia tamba
Wikipedia: Hyparrhenia tamba


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Botswana: Species information: Hyparrhenia tamba.
https://www.botswanaflora.com/speciesdata/species.php?species_id=109010, retrieved 29 March 2024

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