Evolution of types of floral heteromorphy across the mimosoid clade. Character states were defined as: homomorphic, i.e. with no conspicuous modification or variation amongst flowers within an inflorescence (here we include inflorescences that can comprise proportions of male and bisexual flowers, but no other more conspicuous variation); heteromorphic 1 = basal flowers of the inflorescence with showy staminodia; heteromorphic 2 = flowers dimorphic within an inflorescence, the central flower (or flowers) enlarged/sessile cf. the peripheral (sometimes pedicellate) flowers. Branch lengths are not informative in this figure. Photos a–h heteromorphic 1 a Neptunia plena (L.) Benth. b Dichrostachys cinerea (L.) Wight & Arn. c Dichrostachys myriophylla Baker d Gagnebina pterocarpa (Lam.) Baill. e Dichrostachys bernieriana Baill. f Dichrostachys akataensis Villiers g Parkia bahiae H.C. Hopkins h Parkia nitida Miq. i–l heteromorphic 2 i Pseudosamanea guachapele (Kunth) Harms j Albizia obliquifoliolata De Wild. k Hydrochorea corymbosa (Rich.) Barneby & J.W. Grimes l Albizia grandibracteata Taub. Photos a, b, g, i Colin Hughes c, k, l Erik Koenen d Melissa Luckow e, f Dave Du Puy h Giacomo Sellan https://identify.plantnet.org/the-plant-list/observations/1012799991 j Jan Wieringa.