Echinochloa muricata. The uppermost leaf (or leaves) subtending the distal inflorescence have the demarcation between blade and sheath in the form of an elongated upside-down U. (Photograph: Rutger Barendse).

 
 
  Part of: Hoste I, Verloove F (2022) Taxonomy of the weed species of the genus Echinochloa (Poaceae, Paniceae) in Southwestern Europe: Exploring the confused current state of affairs. PhytoKeys 197: 1-31. https://doi.org/10.3897/phytokeys.197.79499