The leaves look too narrow for Stylidium armeria, and from what I can see of the cross- section, appear to have a definite midrib on the lower surface, typical of Stylidium graminifolium. Also the flowers in this photo are pale pink, which is typical of Stylidium graminfolium. Stylidium armeria has bright pink flowers. There was a discussion about the two species at http://canberranaturemap.org/Community/Sightings/Details/1948241