Certainly looks like it. The only other record from the south coast I know of is an early record from the Illawarra. I have been looking for this plant for 30 years and never found it. Please make a collection and send to one of the recognised herbaria. Well done.
Yes, I know this plant from doing bush regen in Sydney but have never seen it down this far. I will take some samples and send to herbarium in Canberra.