Helianthemum villosum Thibaud ex Pers.
      
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2 500722 Helianthemum villosum Thibaud ex Pers. Cistaceae
H.G.A. Engler, Pflanzenr., vol. 183 [Heft 14], (Cistaceae): p. 102, fig. 18 F,G (1903)