''Euphrasia crassiuscula '' is a perennial herb in the genus '' Euphrasia''. It is endemic to the Victorian Alps in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. The species was formally described by French botanist Michel Gandoger based on plant material collected by

Carl Walter Carl Walter (c. 1831 – 7 October 1907), also known as Charles Walter, was an Australian botanist and photographer. He was born in Mecklenburg, Germany in about 1831 and arrived in Victoria (Australia), Victoria in the 1850s. Botanical work W ...

. Three

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

are currently recognised: *''E. crassiuscula'' Gand. subsp. ''crassiuscula'' *''E. crassiuscula '' subsp. ''eglandulosa'' ( J.H.Willis) W.R.Barker *''E. crassiuscula '' subsp. ''glandulifera'' W.R.Barker - thick eyebright, listed as "vulnerable" under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999.

References

crassiuscula Lamiales of Australia Flora of Victoria (Australia) {{Australia-asterid-stub