Smith, G.F., Laguna, E., Verloove, F. & Ferrer-Gallego, P. (2020)

Aptenia ×vascosilvae (A. cordifolia × A. haeckeliana) (Aizoaceae), the new nothospecies from which the horticulturally popular cultivar Aptenia ‘Red Apple’ was derived

. Phytotaxa 441 (2): 221–224. https://doi.org/10.11646/phytotaxa.441.2.10