homotypic synonyms:
Tupa columnaris species (Hook.f.) Vatke;
protologue: J. Proc. Linn. Soc., Bot. 6: 14 (1862)
2 614578 Lobelia columnaris Hook.f.
J. Hutchinson, J.M. Dalziel, R.W.J. Keay, Fl. W. Trop. Afr., ed. 2, vol. 2 : p. 314, fig. 274 (1963) [W.E. Trevithick]
Tupa columnaris species (Hook.f.) Vatke;
protologue: J. Proc. Linn. Soc., Bot. 6: 14 (1862)
2 614578 Lobelia columnaris Hook.f.J. Hutchinson, J.M. Dalziel, R.W.J. Keay, Fl. W. Trop. Afr., ed. 2, vol. 2 : p. 314, fig. 274 (1963) [W.E. Trevithick]