Nemesia glaucescens is a species of plant endemic to South Africa.

This annual erect herb grows 150–260 mm (5.9–10.2 in) tall.

The petals are pale with a rounded lower lip and no margin at the tip.

The palate (a rounded projection at the opening of the tube) is hairy and the spur is conical.

[3] This species in endemic to the Northern Cape of South Africa.