Klak, C., Schmiedel, U., & Bruyns, P. V. (2020).

The taxonomic status of Ruschia stricta var. turgida and R. promontorii and a new name for R. vaginata (Ruschieae, Aizoaceae)

. Phytotaxa, 433(1), 41–54. https://doi.org/10.11646/phytotaxa.433.1.5