The greenfinches are small passerine birds in the genus Chloris in the subfamily Carduelinae within the Fringillidae.
The greenfinches were formerly placed in the genus Carduelis.
The genus name is from Ancient Greek khloris, the European greenfinch, from khloros, "green".

1/ Black-headed greenfinch (Sẻ núi, Chloris ambigua)
The specific epithet ambigua is from the Latin ambiguus for "doubtful".

2/ Vietnamese greenfinch (Chloris monguilloti)
the specific epithet was chosen to honour Maurice Antoine François Monguillot, the General Secretary of French Indochina.