@Tapirlord would love your thoughts here. I'm getting Boronia rhomboidea, which would be unusual but not impossible (there is another sighting in Mongarlowe on iNat). Definitely reads as Rutaceae to me. What do you think?
I've added a close-up that shows the hairs on the calyx. Don't seem to be long and wispy compared with sighting 4456028 or with the calyx hairs of another specimen several other meters to the east (4456028) that I logged 3 years ago.