Le Roux, M. M., R. R. Klopper, and J. S. Boatwright. “Clarifying the Placement of Trifolium capense in Leobordea (Fabaceae)”. Phytotaxa, vol. 635, no. 2, Jan. 2024, pp. 189-90, doi:10.11646/phytotaxa.635.2.9.