Vishnupurana 1.21.24

1.21.24

gās tu vai janayām āsa surabhir mahiṣīs tathā
irāvṛkṣalatāvallīs tṛṇajātīś ca sarvaśaḥ //

Surabhi was the mother of cows and buffaloes: Irá, of trees and creeping plants and shrubs, and every kind of grass: Khasá, of the Rákshasas and Yakshas: Muni, of the Apsarasas: and Arisht́á, of the illustrious Gandharbas.