7561.000 Torenia L.

Leistner, O.A. (ed.) (2000) Seed plants of southern Africa: families and genera Strelitzia 10

Description of the genus

Annual, sometimes aquatic, herbs. Stems 4-angled. Leaves opposite, decussate, the leaf venation pinnate. Flowers axillary, usually borne 2-6 together in fascicles or on minute branches, sometimes solitary. Bracts present, linear. Calyx 2-lipped and 5-lobed, prominently winged along the veins in fruit. Corolla 2-lipped and 4-lobed; tube cylindric below, slightly wider above; upper lip entire; lower lip larger with 3 subequal lobes. Stamens 4, fertile, didynamous. Nectary present, prominent, saucer-shaped. Ovary 2-locular, with hairs at the apex; locules with unicellular hairs inside; ovules many. Fruit a septicidal or poricidal capsule. Seeds numerous, small, with thickening of some epidermis cell walls.

Worldwide: c. 40 species in the tropics, occurring mainly in Africa, SE Asia and the Indian Ocean islands.

Malawi: 1 taxon.

Torenia thouarsii

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

SpeciesFZ divisionsContent
thouarsii (Cham. & Schltdl.) KuntzeN,SDescription, Image

Other sources of information about Torenia:

Our websites:

Flora of Botswana: Torenia
Flora of Mozambique: Torenia
Flora of Zambia: Torenia
Flora of Zimbabwe: Torenia
Flora of Zimbabwe: cultivated Torenia

External websites:

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

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-23

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2023). Flora of Malawi: Genus page: Torenia.
https://www.malawiflora.com/speciesdata/genus.php?genus_id=1281, retrieved 1 December 2023

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