Petalostigma pubescens Domin in Biblioth. Bot. 89: 871. 1928
- Unknown type category: Mitchell 483/615
- =Petalostigma quadriloculare var. pubescens Müll.Arg. in Flora 47: 481. 1864
- Unknown type category: 1885-7, F. Mueller s.n.
- =Petalostigma quadriloculare var. genuina Müll.Arg. in DC., Prodr. 15: 273. 1866
- Unknown type category: 1855-7, F. Mueller s.n.
- =Petalostigma australianum auct. non Baill.: Baill. in Adansonia 7: t. 2, pro parte (‘Crescit in Australia … Leichhardt’, t. 2). 1867
- =Petalostigma quadriloculare var. nigrum Ewart & O.B.Davies, Fl. N. Territory: t. 17. 1917
- =Petalostigma nummularium Airy Shaw in Kew Bull. 31: 373. 1976
- Isotype: C.R. Dunlop 2290 (BRI)
- Type: C.R. Dunlop 2290 (DNA)
- Holotype: C.R. Dunlop 2290 (K)