"iNaturalist is one of the most popular biodiversity citizen science platforms globally, with more than 1.4 million users having contributed over 54 million observations. Australia is the top contributing nation in the southern hemisphere, and in the top four contributing nations globally, with over 1.6 million observations of over 36 000 identified species contributed by almost 27 000 users."
https://bioone.org/journals/wildlife-research/volume-48/issue-4/WR20154/An-overview-of-the-history-current-contributions-and-future-outlook/10.1071/WR20154.full
These two species are easily confused. Best way to separate is to take a close up photo of the base of the corolla tube. If slit to near base then Lobelia pedunculata, if not the Isotoma fluviatilis.
https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=fm&name=Campanulaceae
Lowland areas of the tablelands can have both of the common Echium species, so it pays to double check whether all the stamens are protruding from the flower (E.vulgare), or if the base of the leaves is cordate (E.plantagineum):
https://inaturalist.ala.org.au/observations/47700224
This is the susbspecies of G.baueri that occurs on the NSW South Coast Ranges https://inaturalist.ala.org.au/observations/244984274
Advice from Jackie Miles: Very similar to P. hispidula, differing only in the ovary being hairy all over in hispidula and only at the tip in villosa. Have to rely on location in the identification.
Due to the large leaves, Lasiopetalum macrophyllum can superficially look like Androcalva rossii. But a close up of the flower shows the marked difference.