What is "otachyrium"

Otachyrium is a genus of South American plants in the grass family.

1. Otachyrium aquaticum Send. & Soderstr. - Bahia, Minas Gerais
2. Otachyrium boliviense Renvoize - Bolivia
3. Otachyrium grandiflorum Send. & Soderstr. - Venezuela ( Amazonas), Brazil ( Goiás, Amazonas, D.F., Roraima)
4. Otachyrium inaequale Pilg. - Guyana, Suriname, French Guiana, Venezuela, Brazil
5. Otachyrium piligerum Send. & Soderstr. - Goiás
6. Otachyrium pterigodium (Trin.) Pilg. - Minas Gerais, Amazonas, D.F.
7. Otachyrium seminudum Send. & Soderstr. - Goiás, Mato Grosso, D.F.
8. Otachyrium versicolor (Döll) Henrard - Guyana, Suriname, French Guiana, Venezuela, Brazil, Colombia, Bolivia, Paraguay, Argentina ( Corrientes, Misiones)