Asteraceae Bercht. & J.Presl

Oncosiphon piluliferum Källersjö

, orth. var.

, scientific

Källersjö, M. (1988), A generic re-classification of Pentzia Thunb. (Compositae-Anthemideae) from southern Africa.

Botanical Journal of the Linnean Society

96

:

310

[primary reference]