The flower colour variations of different populations of E. acuminatum. A SCMP, mainly yellow B SCSL, mainly yellow, occasionally purple-yellow at the base of petals C CQNC, mainly yellow, occasionally rose-purple D SCSS, from yellow to purple E SCEM, mainly purple, occasionally purple-yellow F SCYJ, mainly purple, occasionally purple-yellow G Individual with yellow flowers H Individual with purple-yellow flowers I Individual with purple flowers.

 
 
  Part of: Xu Y, Liu L, Liu S, He Y, Li R, Ge F (2019) The taxonomic relevance of flower colour for Epimedium (Berberidaceae), with morphological and nomenclatural notes for five species from China. PhytoKeys 118: 33-64. https://doi.org/10.3897/phytokeys.118.30268