Eschscholzia californica Cham.
Synonym(s):
Eschscholzia helleriana Greene
Data source(s):
  • Herbarium specimen. Royal Botanic Garden Edinburgh Herbarium, p.E00060143
  • Grey-Wilson, C. 1995. Poppies. The Poppy family in the wild and in cultivation. London: B.T. Batsford, p.57
  • Chamisso. Nees Hor. Phys. Berol. c.74 pp., p.74