Stem square

The following is a list of native or naturalised species which, at least some of the time, possess this spot-character.

I.e. 4-angled or 4-ribbed

FamilySpeciesComment
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Duvalia polita var. polita
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Huernia levyi
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Huernia verekeri var. verekeri
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Orbea schweinfurthii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Orbea valida subsp. valida
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Stapelia gigantea
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae Stapelia kwebensis
Celastraceae Pleurostylia africana Branchlets 4-angled; this is small and is best seen with a lens
Olacaceae Olax dissitiflora
Olacaceae Olax obtusifolia
Rubiaceae Galium bussei var. glabrum
Rubiaceae Galium scabrellum
Rubiaceae Rubia cordifolia subsp. conotricha
Vitaceae Cissus petiolata
Vitaceae Cissus producta
Vitaceae Cissus quadrangularis
Number of species: 16


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-17

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2017). Flora of Zambia: List of species with each spot-character: Stem square.
http://www.zambiaflora.com/speciesdata/species-spot-display.php?species_id=104, retrieved 24 October 2017

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