Crespo, M. B., Alonso, M. Ángeles, Vicente, A., & Villar, J. L. (2016).

A new North African subspecies in the Helianthemum origanifolium aggregate (H. subg. Plectolobum, Cistaceae)

. Phytotaxa, 252(4), 263–272. https://doi.org/10.11646/phytotaxa.252.4.2