Ranalisma Stapf

Martins, E.S. & Catarino, L. (2009) Alismataceae Flora Zambesiaca 12(2)

Description of the genus

Perennial stoloniferous glabrous, marsh herbs. Leaves erect, or spreading; leaf-blade ovate to linear-lanceolate; base cordate to cuneate. Inflorescence pseudo-umbellate, 1–3-flowered with 2 membranous bracts; flowers sometimes replaced by vegetative buds—the peduncle bends over stolon-like and the buds develop into new plants. Sepals 3, reflexed in the fruiting stage. Petals 3, larger than the sepals, white. Stamens (6–)9(–12); filaments filiform. Carpels ∞, free on a convex receptacle; styles terminal, hooked; ovules solitary, basal. Fruit a globose head of achenes spirally arranged on the elongated receptacle; achenes strongly compressed laterally, glandular, winged, with a terminal beak formed by the remains of the style.

Worldwide: Species 2, in south east Asia and Malay peninsula.

Zambia: 1 taxon.

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SpeciesFZ divisionsProvincesContent
humile (Kunth) Hutch. B,NN,W

Other sources of information about Ranalisma:

External websites:

ePIC (electronic Plant Information Center): Ranalisma
Flora Zambesiaca web site: Ranalisma
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Ranalisma
IPNI (International Plant Names Index): Ranalisma
Kew Herbarium catalogue: Ranalisma
Kew Monocotyledon checklist: Ranalisma

Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-20

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2020). Flora of Zambia: Genus page: Ranalisma.
https://www.zambiaflora.com/speciesdata/genus.php?genus_id=1903, retrieved 10 August 2020

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