| Verbenaceae | |
Chascanum adenostachyum
| (Schauer) Moldenke | Torreya 34: 8 | 1934 |
| Verbenaceae | ** |
Chascanum affine
| Stocks ex Moldenke | Repert. Spec. Nov. Regni Veg. 45: 132 | 1938 |
| Verbenaceae | |
Chascanum africanum
| Moldenke | Repert. Spec. Nov. Regni Veg. 45: 136 | 1938 |
| Verbenaceae | |
Chascanum angolense
| Moldenke | Repert. Spec. Nov. Regni Veg. 45: 142 | 1938 |
| Verbenaceae | |
Chascanum arabicum
| Moldenke | Repert. Spec. Nov. Regni Veg. 45: 138 | 1938 |
| Verbenaceae | |
Chascanum caespitosum
| (H. Pearson) Moldenke | Torreya 34: 8 | 1934 |
| Verbenaceae | |
Chascanum cernuum
| (Schauer) E. Mey. | Comm. Pl. Afr. Austr. 276 | 1837 [1838] |
| Verbenaceae | |
Chascanum cuneifolium
| E. Mey. | Comm. Pl. Afr. Austr. 276 | 1837 |
| Verbenaceae | |
Chascanum dehiscens
| (L. f.) Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum elburense
| Thulin | Nordic J. Bot. 23: 516 | 2005 |
| Verbenaceae | |
Chascanum garipense
| E. Mey. | Comm. Pl. Afr. Austr. 277 | 1837 |
| Verbenaceae | |
Chascanum gillettii
| Moldenke | Revista Sudamer. Bot. 6: 18 | 1939 |
| Verbenaceae | |
Chascanum glanduliferum
| (H. Pearson) Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum glandulosum
| Thulin | Nordic J. Bot. 23: 517 | 2005 |
| Verbenaceae | |
Chascanum guerkeanum
| Moldenke | Phytologia 4: 443 | 1953 |
| Verbenaceae | |
Chascanum hanningtonii
| (Oliv.) Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum hederaceum
| (Sond.) Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum hildebrandtii
| (Vatke) J.B. Gillett | Kew Bull. 10: 134 | 1955 |
| Verbenaceae | |
Chascanum humbertii
| Moldenke | Phytologia 3: 262 | 1950 |
| Verbenaceae | |
Chascanum hyderabadense
| Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum hyderobadense
| (Walp.) Moldenke | Torreya 34: 9 | 1934 |
| Verbenaceae | |
Chascanum incisum
| (H. Pearson) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum insulare
| Moldenke | Repert. Spec. Nov. Regni Veg. 45: 131–132 | 1938 |
| Verbenaceae | |
Chascanum integrifolium
| (H. Pearson) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum krookii
| (Gürke ex Zahlbr.) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum laetum
| Fenzl ex Schauer | Prodr. 11: 559 | 1847 |
| Verbenaceae | |
Chascanum laetum
| Walp. | Repert. Bot. Syst. 4: 39 | 1845 |
| Verbenaceae | |
Chascanum latifolium
| (Harv.) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum lignosum
| (Dinter) Moldenke | Revista Sudamer. Bot. 5: 1 | 1937 |
| Verbenaceae | |
Chascanum longipetalum
| (H. Pearson) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum marrubiifolium
| Fenzl ex Walp. | Repert. Bot. Syst. 4: 38 | 1845 |
| Verbenaceae | |
Chascanum mixtum
| Thulin | Nordic J. Bot. 23: 514 | 2005 |
| Verbenaceae | |
Chascanum moldenkei
| (J.B. Gillett) Sebsebe & Verdc. | Kew Bull. 43(3): 521 | 1988 |
| Verbenaceae | |
Chascanum namaquanum
| (Bolus ex H. Pearson) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum obovatum
| Sebsebe | Nordic J. Bot. 8(6): 629, f. 2 | 1988 |
| Verbenaceae | |
Chascanum pinnatifidum
| E. Mey. | Comm. Pl. Afr. Austr. 277 | |
| Verbenaceae | |
Chascanum pumilum
| E. Mey. | Comm. Pl. Afr. Austr. 277 | |
| Verbenaceae | |
Chascanum rariflorum
| (Terracciano) Moldenke | Phytologia 1(4): 167 | 1935 |
| Verbenaceae | |
Chascanum schlechteri
| (Gürke) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum sessilifolium
| (Vatke) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum sulcatum
| Sebsebe | Nordic J. Bot. 8(6): 627 | 1989 |
| Verbenaceae | |
Chascanum wilmsii
| (Gürke) Moldenke | Phytologia 1: 18 | 1933 |
| Verbenaceae | |
Chascanum yemenense
| Sebsebe | Kew Bull. 45(1): 137 | 1990 |