What is "mesanthemum"

Mesanthemum is a genus of plants in the Eriocaulaceae, first described in 1856. It is native to tropical Africa and Madagascar.

1. Mesanthemum africanum Moldenke - Mozambique, Zimbabwe
2. Mesanthemum albidum Lecomte - Guinea, Senegal, Sierra Leone
3. Mesanthemum angustitepalum Kimp - Zaïre
4. Mesanthemum auratum Lecomte - Guinea, Senegal, Sierra Leone, Guinea-Bissau
5. Mesanthemum bennae Jacq.-Fél - Guinea
6. Mesanthemum cupricola Kimp - Zaïre
7. Mesanthemum glabrum Kimp - Zaïre, Angola, Zambia
8. Mesanthemum jaegeri Jacq.-Fél - Ivory Coast, Sierra Leone, Nigeria, Cameroon, Congo-Brazzaville
9. Mesanthemum pilosum Kimp - Zaïre, Angola, Zambia, Malawi
10. Mesanthemum prescottianum (Bong.) Körn. - Guinea, Ivory Coast, Liberia, Sierra Leone, Gabon
11. Mesanthemum pubescens (Lam.) Körn. - Madagascar
12. Mesanthemum radicans (Benth.) Körn. - widespread from Liberia east to Tanzania, south to Mozambique
13. Mesanthemum reductum H.E.Hess - Congo-Brazzaville, Angola
14. Mesanthemum rutenbergianum Körn. - Madagascar
15. Mesanthemum variabile Kimp - Zaïre, Zambia