A, B. Shows the increasing intensity of purple coloration in I. atrofusca flowers towards the northern part of their distribution, with standards displaying dark purple veins on a paler background, a trait also observed in I. haynei.

 
 
  Part of: Gedeon JG, Khalilieh AI (2024) Shedding light on the geographical distribution, population size and inflorescence coloration variety of Royal Irises (Iris section Oncocyclus) family in West Bank, Palestine. Plant Sociology 61(2): 49-71. https://doi.org/10.3897/pls2024612/04