distribution map
Thrixspermum collinum Schltr., plant habit, photo E.F. de Vogel
Thrixspermum collinum Schltr., inflorescence, photo E.F. de Vogel
Thrixspermum collinum Schltr., flower, oblique front view, photo E.F. de Vogel
Thrixspermum collinum Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 338, fig. 1302
Thrixspermum collinum Schltr., herbarium sheet, Schlechter 16148 (isotype specimen L)