The following is a list of native or naturalised species which, at least some of the time, possess this spot-character.
Calyx resembling a spathe, as in the Araceae, usually surrounding or enclosing the corolla.Number of species: 3
Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-17
Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M.
. Flora of Zimbabwe: List of native or naturalised species with each spot-character: Calyx spathaceous.
http://www.zimbabweflora.co.zw/speciesdata/species-spot-display.php?species_id=919, retrieved 31 March 2017