Duosperma crenatum (Lindau) P.G. Mey.

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Duosperma crenatum

Photo: Bart Wursten
B8 road through Bwabwata

Duosperma crenatum

Photo: Bart Wursten
B8 road through Bwabwata

Duosperma crenatum

Photo: Bart Wursten
B8 road through Bwabwata

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Synonyms: Disperma crenatum (Lindau) Milne-Redh.
Disperma parviflorum (Lindau) C.B. Clarke
Disperma quadrisepalum C.B. Clarke
Disperma quadrisepalum C.B. Clarke var. grandifolium S. Moore
Dyschoriste quadrisepala (C.B. Clarke) Lindau
Hygrophila crenata Lindau
Hygrophila parviflora Lindau
Common names:
Status: Native
Erect or decumbent, somewhat scrambling shrubby perennial herb, up to c. 2 m tall. Older stems, woody with a papery, peeling bark; younger stems more or less hairy, aromatic when crushed. Leaves opposite, ovate-elliptic to somewhat obovate, 3 - 13 cm long, hairless to sparsely hairy, particularly on the veins below; margin scalloped or toothed. Petiole 1-2 cm long, conspicuously ciliate with glossy hairs. Flowers in few-many-flowered axillary clusters; outer bracts leaf-like, up to 3 × 1.5 cm. Corolla white to creamy-white with two red to purple markings on the lower lip. Fruit an obovoid capsule, 6-9 mm long.
Derivation of specific name: crenatum: scalloped or crenate, referring to the leaf margin.
Habitat: In mixed deciduous woodland and scrub, alluvial grassland, in riverine vegetation and on termite mounds, often in shady places.
Flowering time:Throughout the year
Worldwide distribution: Ethiopia, Kenya, Tanzania, Botswana, Namibia, Malawi, Mozambique, Zambia, Zimbabwe and South Africa.
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Content last updated: Tuesday 27 February 2018

Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 328. (Includes a picture).

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 13.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 18.

Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 15. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 18.

Vollesen, K. (2013). Acanthaceae (Part 1) Flora Zambesiaca 8(5) Pages 163 - 165. (Includes a picture).

Other sources of information about Duosperma crenatum:

Our websites:

Flora of Botswana: Duosperma crenatum
Flora of Malawi: Duosperma crenatum
Flora of Mozambique: Duosperma crenatum
Flora of Zambia: Duosperma crenatum
Flora of Zimbabwe: Duosperma crenatum

External websites:

African Plants: A Photo Guide (Senckenberg): Duosperma crenatum
African Plant Database: Duosperma crenatum
BHL (Biodiversity Heritage Library): Duosperma crenatum
EOL (Encyclopedia of Life): Duosperma crenatum
ePIC (electronic Plant Information Center): Duosperma crenatum
Flora Zambesiaca web site: Duosperma crenatum
GBIF (Global Biodiversity Information Facility): Duosperma crenatum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Duosperma crenatum
iNaturalist: Duosperma crenatum
IPNI (International Plant Names Index): Duosperma crenatum
JSTOR Plant Science: Duosperma crenatum
Kew Herbarium catalogue: Duosperma crenatum
Mansfeld World Database of Agricultural and Horticultural Crops: Duosperma crenatum
Plants of the World Online: Duosperma crenatum
Tropicos: Duosperma crenatum
Wikipedia: Duosperma crenatum

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-22

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2022). Flora of Caprivi: Species information: Duosperma crenatum.
https://www.capriviflora.com/speciesdata/species.php?species_id=153320, retrieved 5 December 2022

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