It has one known synonym, Grislea Loefl..[1] The genus just contains one known species, Pehria compacta (Rusby) Sprague[2] Its native range stretches from Central America down to Venezuela.

They are puberulent (covered with minute soft erect hairs), with conspicuous glandular, globose, orange or black spots.

[3] The genus name of Pehria is in honour of Pehr Löfling (1729–1756), a Swedish botanist and an apostle of Carl Linnaeus.

[4] The Latin specific epithet of compacta refers to compactus meaning dense or joined together.

[2] It is found in pastures, grasslands, at the edge of forests and on the banks of roads and rivers, at elevations of 100–1,500 m (300–4,900 ft) above sea level.