Andropogon gayanus Kunth

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Synonyms: Andropogon appendiculatus var. polycladus
Andropogon gayanus var. polycladus (Hack.) Clayton
Andropogon gayanus Kunth var. squamulatus (Hochst.) Stapf
Andropogon squamulatus Hochst.
Common names:
Frequency:
Status: Native
Description:
Caespitose perennial; culms up to 350 cm high, erect, branched above, glaucous. Leaf sheaths occasionally woolly below; ligule a very short (c. 2 mm) minutely fringed membrane, the leaves often with small protuberances or a second ligule present abaxially to the ligule; laminas 20–50(80) cm × 4–22 mm, reduced to the midrib and petiole-like at the base, gradually much expanded above, folded or flat, tapering to a fine point at the apex, this often with minute dense white hairs. Racemes in pairs, 4–10 cm long, clearly exserted from the spatheole, silvery with white hairs; peduncles longer than the racemes; internodes and pedicels clavate, ciliate with hairs c. 4 mm long on both margins, bilobed at the apex, the lobes c. 2 mm long. Sessile spikelet 6.5–8.5 mm long; inferior glume with a shallow median groove, glabrous or with short hairs; superior glume convex on the back; superior lemma bifid in the upper 1/4; awn geniculate, 13–32 mm long; anthers 3–5 mm long, straw-coloured. Pedicelled spikelet male, 5–7.5 mm long; inferior glume mucronate or with an awn up to 3.5 mm long.
Notes:
Derivation of specific name: gayanus: after Claude Gay, 1800-1873, French natural historian.
Habitat: Growing in xerophytic grassland on doloritic, sandy or clayey soils, and in fallow fields and along roadsides
Flowering time:
Worldwide distribution:
Botswana distribution: N
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 338.

Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 5. As Andropogon gayanus polycladus

Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 4. As Andropogon gayanus polycladus

Cope, T.A. (2002). Poaceae Flora Zambesiaca 10(4) Pages 68 - 69. (Includes a picture).

Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 458. (Includes a picture).

Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 28. As Andropogon gayanus squamulatus

Klaassen Esmerialda, E.S. & Craven P. (2003). Checklist of grasses in Namibia SABONET Report No. 20 Page 8. as A. gayanus var. polycladus

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 99.

Roodt, V. (2015). Grasses & Grazers of Botswana and the surrounding savanna Struik Nature, South Africa Pages 32 - 33. as var. polycladus (Includes a picture).

Siebert, S. & Mössmer, M. (Editors) (2002). SABONET Southern Mozambique Expedition 2001; Provisional Plant Checklist of the Maputo Elephant Reserve (MER) and Licuati Forest Reserve (LFR) SABONET News 7(1) Page 27.

Other sources of information about Andropogon gayanus:

Our websites:

Flora of Burundi: Andropogon gayanus
Flora of Caprivi: Andropogon gayanus
Flora of Malawi: Andropogon gayanus
Flora of Mozambique: Andropogon gayanus
Flora of Zambia: Andropogon gayanus
Flora of Zimbabwe: Andropogon gayanus

External websites:

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


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: Andropogon gayanus.
https://www.botswanaflora.com/speciesdata/species.php?species_id=108550, retrieved 14 December 2024

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