| Ichnanthus nubigenus Swallen, 1950 |
| Ichnanthus nubilis Chase, 1952 |
| Ichnanthus pallens (Sw.) Munro ex Benth., 1861 |
| Ichnanthus pallens f. monstrosa Donn. Sm., 1905 |
| Ichnanthus pallens f. monstrosus (E. Fourn.) Beetle, 1983 |
| Ichnanthus pallens var. major (Nees) Stieber, 1987 |
| Ichnanthus pallens var. pallens (Sw.) Munro ex Benth., 1861 |
| Ichnanthus pallidus Swallen, 1964 |
| Ichnanthus papillatus K.E. Rogers, 1973 |
| Ichnanthus parodii K.E. Rogers, 1971 |
| Ichnanthus parodii var. villosissimus K.E. Rogers, 1973 |
| Ichnanthus petiolatus (Nees) Döll, 1877 |
| Ichnanthus petiolatus var. lanceolatus Döll, 1877 |
| Ichnanthus petraeus K.E. Rogers, 1973 |
| Ichnanthus pilosus K.E. Rogers, 1972 |
| Ichnanthus polythyrsus (Nees ex Steud.) K.E. Rogers, 1971 |
| Ichnanthus riedelii (Trin.) Döll, 1877 |
| Ichnanthus sabulosus K.E. Rogers, 1973 |
| Ichnanthus scaberrimus Swallen, 1950 |
| Ichnanthus silvestris Swallen, 1964 |