Primula irregularis Craib
Data source(s):
  • Huxley, A.J. 1992. The new Royal Horticultural Society dictionary of gardening. Vol. 1-4. London, p.(3)718
  • Craib, W.G. 1917. New species of Primula belonging to the Petiolaris-Sonchifolia Section. in Notes from the Royal Botanic Garden Edinburgh 6(29-30): 249-257, p.253
  • Lord, T. 1999. The RHS plant finder. 1999-2000 edition. London: The Royal Horticultural Society, p.541
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