Bearing hardened petioles
The following is a list of native or naturalised species which, at least some of the time, possess this spot-character.
Number of species: 1
Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-15
Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A.
. Flora of Zambia: List of species with each spot-character: Bearing hardened petioles.
http://www.zambiaflora.com/speciesdata/species-spot-display.php?species_id=11, retrieved 2 July 2015