[1]
Bester, S.P. and Paiva, J. 2015.

The first records of Polygala westii (Polygalaceae) for South Africa (North-West Province) and a key to the southern African Polygala species in the Section Tetrasepalae

. Phytotaxa. 202, 3 (Mar. 2015), 198–206. DOI:https://doi.org/10.11646/phytotaxa.202.3.3.