Dichanthium annulatum (Forssk.) Stapf
var. annulatum

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Synonyms: Andropogon annulatus Forssk.
Andropogon obtusus Nees
Andropogon scandens Roxb.
Lepeocercis annulata (Forssk.) Nees
Common names:
Frequency:
Status: Native
Description:
Tufted, decumbent or erect, perennial with short rhizomes. Culms robust, up to 2 m high; nodes exposed and densely bearded. Inflorescence of 2-many, subdigitate, shortly pedunculate racemes; culm below the inflorescence glabrous. Racemes with the lowest 1-6 spikelet pairs homogamous, male or neuter. Sessile spikelets: lower glume of the sessile spikelet is pubescent to pilose below the middle, with bulbous-based hairs confined to the margins above (var. annulatum); lower floret barren; upper floret stipitiform, awn c. 25 mm long. Pedicelled spikelets similar or slightly smaller than the sessile spikelet, male or neuter.

Two varieties occur in our area. See var. papillosum for comparison.
Notes:
Derivation of specific name: annulatum: having a ring
Habitat: In sandy riverbeds, river margins, lake shores, grassy floodplains and riverine forest margins, occasionally on roadsides.
Altitude range: (metres) 100 - 1460 m
Flowering time:
Worldwide distribution: Widespread in tropical and subtropical Africa and eastwards through Arabia and India to SE Asia; introduced in tropical America and Australia.
Zimbabwe distribution: N,W,C,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Cope, T.A. (2002). Poaceae Flora Zambesiaca 10(4) Pages 38 - 40. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 134.


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Other sources of information about Dichanthium annulatum var. annulatum:

Our websites:

Flora of Botswana: Dichanthium annulatum var. annulatum
Flora of Malawi: Dichanthium annulatum var. annulatum
Flora of Mozambique: Dichanthium annulatum var. annulatum
Flora of Zambia: Dichanthium annulatum var. annulatum

External websites:

African Plant Database: Dichanthium annulatum
Biodiversity Explorer (Biodiversity of southern Africa): Dichanthium annulatum
EOL (Encyclopedia of Life): Dichanthium annulatum
ePIC (electronic Plant Information Center): Dichanthium annulatum
Flora Zambesiaca web site: Dichanthium annulatum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Dichanthium annulatum
IPNI (International Plant Names Index): Dichanthium annulatum
Ispot Southern Africa : Dichanthium annulatum
JSTOR Plant Science: Dichanthium annulatum
Kew Herbarium catalogue: Dichanthium annulatum
Kew Monocotyledon checklist: Dichanthium annulatum
Tropicos: Dichanthium annulatum
West African Plants database: Dichanthium annulatum


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Dichanthium annulatum var. annulatum.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=164550, retrieved 27 June 2016

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