Children (9 direct children, 9 direct and indirect children):
Trachyrhizum agrostophyllum
Trachyrhizum angustipetalum
Trachyrhizum ansusanum
Trachyrhizum appendiculoides
Trachyrhizum chalmersii
Trachyrhizum prostheciglossum
Trachyrhizum schlechteri
Trachyrhizum villosipes
Trachyrhizum zippelii