These blue Legume Wildflowers (Fabaceae gen., german: Hülsenfrüchtler, french: Légumineuses) gave a lot of the desert a nice blue color. (821k)
Here are the pictures of Legume (Fabaceae gen.) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
Tibet Nature
Dr. Günther Eichhorn Travel Website
Soaring website