896.000 Commelina L.

Faden, R. (2012) Commelinaceae Flora of Tropical East Africa

Malaise, P. (1988) Commelinaceae Flore du Rwanda Spermatophytes Volume IV 119-142

Van den Burg, J.W. & Bidault, E. (2020) Commelinaceae Flore du Gabon 55 1-88

Description of the genus

Annual or perennial herbs. Underground stolons sometimes bearing cleistogamous flowers. Flowers in one or two 1-6-flowered cymes enclosed in a spathe. Upper cyme 1-(-3)-flowered, usually male, exserted on a long peduncle, sometimes rudimentary or 0. Lower cyme included, borne on a short peduncle; flowers 2-6, all bisexual or some male, just exserted at flowering time. Flowers open in morning, soon deliquescent. Petals 3, free; upper 2 flat, variously coloured, the lower reduced, often colourless. Stamens 3, lower fertile, upper 3 staminodes, reduced. Ovary (2-)3-locular. Fruit a capsule.

Derivation of name: Named after Kaspar (1667-1731) and Johann (1629-1698) Commelin, Dutch botanists.

Worldwide: c. 170 species in tropical and warm regions

Botswana: 15 taxa.

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Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesFZ divisionsContent
africana L. [Agg]N,SW,SEDescription, Image
aspera Benth. var. aspera Description
benghalensis L.N,SEDescription, Image
diffusa Burm. f. subsp. diffusa Description, Image
diffusa Burm. f. subsp. scandens (Welw. ex C.B.Clarke) Oberm.
eckloniana Kunth [Agg]Description, Image
erecta L. [Agg]
erecta L. subsp. livingstonii (C.B.Clarke) J.K.Morton
fluviatilis Brenan
forskaolii VahlDescription, Image
kotschyi Hassk.
macrospatha Gilg & Ledermann ex Mildbr.N
petersii Hassk.
subulata RothN,SEDescription, Image
zambesica C.B.Clarke

Other sources of information about Commelina:

Our websites:

Flora of Burundi: Commelina
Flora of Caprivi: Commelina
Flora of the DRC: Commelina
Flora of Malawi: Commelina
Flora of Mozambique: Commelina
Flora of Rwanda: Commelina
Flora of Zambia: Commelina
Flora of Zimbabwe: Commelina

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-25

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2025). Flora of Botswana: Genus page: Commelina.
https://www.botswanaflora.com/speciesdata/genus.php?genus_id=315, retrieved 18 September 2025

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