Morphology of the ligules of the internal and external sheaths/leaves of the vegetative shoots in a Stipa purpurea b S. arenosa c S. tremula. Scale bars: 1 mm.

 
 
  Part of: Nobis M, Krzempek M, Nowak A, Gudkova PD, Klichowska E (2022) ´╗┐Resurrection of Stipa tremula and taxonomy of the high-alpine species from the Stipa purpurea complex (Poaceae, Pooideae). PhytoKeys 196: 21-47. https://doi.org/10.3897/phytokeys.196.82598