What is "diastatea"

Diastatea is a genus of plants native to Latin America, mostly in Mexico and Central America but with one species extending southward along the Andes to Argentina.

1. Diastatea costaricensis McVaugh - Guatemala, Honduras, Nicaragua, Costa Rica
2. Diastatea expansa McVaugh - central Mexico
3. Diastatea ghiesbreghtii (Kuntze) E.Wimm - southwestern Mexico
4. Diastatea micrantha (Kunth) McVaugh - widespread from central Mexico to the Jujuy region of northern Argentina
5. Diastatea tenera (A.Gray) McVaugh - southern Mexico and Guatemala
6. Diastatea virgata Scheidw. - southern Mexico