Preferable to see evidences of the leaves. forms . Please refer to more published information i have summarised and quoted in the species pages including here: Stylidium montanum And to more information in your nearby sighting here : 4624950 .
This is very close (say 30-50m or less?) to my sighting 4496755 which you have confirmed as S. montanum. Fair bet that it is the same species, however, agree I don't have sufficient diagnostic photos to confirm it.
In pro. botany ways, i label this " Stylidium cf. montanum (Dry Plain area) " according to taxa concepts in Elisa Raulings and Pauline Y. Ladiges (2001) and subsequent clarifications by Juliet Wege (2009, 2017) . (For people unfamiliar: cf. means : confer with ) .
@AndyRoo there we go ! I've done the bold step of making this name in NatureMapr: Stylidium cf montanum based on the references cited its page here: Stylidium cf. montanum .