What is "thyrsanthemum"

Thyrsanthemum is a genus of plants in the Commelinaceae, first described in 1946. The entire genus is endemic to Mexico.

1. Thyrsanthemum floribundum (M.Martens & Galeotti) Pichon - Guerrero, Jalisco, Oaxaca, Michoacán, Hidalgo, Puebla
2. Thyrsanthemum goldianum D.R.Hunt - Guerrero, Michoacán, México State, Nayarit
3. Thyrsanthemum macrophyllum (Greenm.) Rohweder - Oaxaca