It is an erect annual plant that grows from 4 to 20 cm tall.

Obovate, orbicular or elliptical leaves, about 5-16 per plant, form basal or terminal rosettes with some scattered along compressed stems.

This species generally has one to seven scapes and cymose inflorescences that are 4–15 cm long.

Stylidium uliginosum is endemic to Southeast Asia and has a wide distribution, ranging from eastern India and Indochina to Guangdong province in southern China.

[1] Earlier reports list this species as also occurring in Queensland and other parts of Australia,[2] but this was before subsequent revisions revealed those occurrences in Australia were really a different species, S. tenerum, that resembled S.