Stereum hirsutum produces small, leathery fruit bodies on dead wood. These may be almost wholly bracket-like but may also start off as a sheet-like growth on the wood, with a part turning away from the wood to form a bracket-like growth. Technically that composite growth form is described as effused-reflexed (effused: the sheet-like bit; reflexed: the turned-out bit). Each fruit body generally covers an area of only a few square centimetres, but separate fruit bodies may merge. They are in shades of yellow/orange/brown and smooth, except that where there is a bracket-like portion, its upper surface has abundant short, whiteish to greyish hairs.
On NatureMapr Stereum hirsutum is used in a broad sense and will undoubtedly include sightings that some would think of as Stereum complicatum but others think the two species are synonymous.
Ryvarden keeps the two separate and gives descriptions. The older paper by Welden gives an interesting technical discussion of the various sub-groups within Stereum.
References
Ryvarden, L (2020), The genus Stereum – a synopsis, Synopsis Fungorum, 40, 46-96. (The volume is freely available here: https://www.fungiflora.no/synopsis-40-various-studies.
Welden, AL (1971), An Essay on Stereum, Mycologia, 63, 790-799.
Stereum hirsutum is listed in the following regions:
Canberra & Southern Tablelands | Albury, Wodonga | South Coast | Riverina Murray | Hume | Gippsland
Maps
ANBG Bermagui State Forest Bodalla State Forest Boro Bournda Environment Education Centre Bournda National Park Broulee Moruya Nature Observation Area Chiltern-Mt Pilot National Park Crace Grasslands Croajingolong National Park Gibraltar Pines Monga National Park Namadgi National Park National Arboretum Forests Sullivans Creek, Lyneham South Tallaganda National Park Tumut State ForestPlaces
Bermagui, NSW Chiltern, VIC Genoa, VIC Lankeys Creek, NSW Lyneham, ACT Uriarra Village, ACT