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

Family	Species	Comment
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Australluma ubomboensis
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Duvalia polita var. polita
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia hislopii subsp. robusta
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia hislopii subsp. hislopii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia hislopii subsp. cashelensis
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia hystrix var. hystrix
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia kirkii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia levyi
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia occulta
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia procumbens
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia verekeri var. verekeri
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia verekeri × hislopii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia verekeri × longituba
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia volkartii var. volkartii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia volkartii var. repens
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Huernia zebrina subsp. zebrina
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea carnosa subsp. keithii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea caudata subsp. rhodesiaca
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea huillensis subsp. huillensis
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea lugardii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea lutea subsp. lutea
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea maculata subsp. maculata
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea rogersii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea schweinfurthii
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea umbracula
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea valida subsp. valida
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Orbea variegata
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Stapelia getliffei
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Stapelia gigantea
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Stapelia kwebensis
Apocynaceae subfamilies Asclepiadoideae and Secamonoideae	Tavaresia barklyi
Asteraceae	Montanoa hibiscifolia
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
Rubiaceae	Galium chloroionanthum
Rubiaceae	Galium scabrellum
Rubiaceae	Rubia cordifolia subsp. conotricha
Rubiaceae	Rubia horrida
Rubiaceae	Sherardia arvensis
Scrophulariaceae	Buddleja lindleyana
Scrophulariaceae	Buddleja saligna
Scrophulariaceae	Freylinia tropica
Vitaceae	Cissus petiolata
Vitaceae	Cissus producta
Vitaceae	Cissus quadrangularis

Number of species: 47

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: List of native or naturalised species with each spot-character: Stem square.
https://www.zimbabweflora.co.zw/speciesdata/species-spot-display.php?species_id=104, retrieved 26 April 2024

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