Brummitt, R.K. (1990) Trichodesma Flora Zambesiaca 7(4)
Taton, A. (1971) Boraginaceae Flore du Congo du Rwanda et du Burundi Jardin Botanique National de Belgique
| Species | Provinces | Content |
| africanum (L.) Sm. | NA | |
| ambacense Welw. subsp. ambacense [End] | CC,CN,CS,CU,HA,MA | |
| ambacense Welw. subsp. hockii (De Wild.) Brummitt | CC | Description, Image |
| arenicola Gürke subsp. arenicola [End] | BE | |
| arenicola Gürke subsp. concinnum Brummitt [End] | HI | |
| baumii Gürke [End] | CC,CS,HI,NA | |
| zeylanicum (Burm. f.) R. Br. | HI | Description, Image |