| Oxyporus populinus | 
 | 
| Fruit bodies | 
| Scientific classification  | 
| Domain: | 
Eukaryota | 
 
| Kingdom: | 
Fungi | 
 
| Division: | 
Basidiomycota | 
 
| Class: | 
Agaricomycetes | 
 
| Order: | 
Hymenochaetales | 
 
| Family: | 
Schizoporaceae | 
 
| Genus: | 
Oxyporus | 
| Species: | 
O. populinus  | 
| Binomial name | 
Oxyporus populinus
  | 
| Synonyms | 
List 
- Boletus populinus Schumach. (1803)
 
- Boudiera connata (Weinm.) Lázaro Ibiza (1916)
 
- Coriolus connatus (Weinm.) Quél. (1888)
 
- Flaviporus connatus (Weinm.) G.Cunn. (1965)
 
- Fomes connatus (Weinm.) Gillet (1878)
 
- Fomes populinus (Schumach.) Cooke (1885)
 
- Leptoporus connatus (Weinm.) Quél. (1886)
 
- Polyporus connatus Schwein. (1832)
 
- Polyporus connatus Weinm. (1826)
 
- Polyporus cremeus Bres. ex Lloyd (1915)
 
- Polyporus neesii var. connatus (Weinm.) Fr. (1828)
 
- Polyporus populinus (Schumach.) Fr. (1821)
 
- Rigidoporus populinus (Schumach.) Pouzar (1966)
 
- Rigidoporus populinus (Schumach.) Teixeira (1992)
 
- Scindalma connatum (Weinm.) Kuntze (1898)
 
- Scindalma populinum (Schumach.) Kuntze (1898)
 
- Trametes connata (Weinm.) Fr. (1849)
 
- Trametes populina (Schumach.) Fr. (1849)
 
- Trametes secretanii G.H.Otth (1866)
 
- Xanthochrous connatus (Schwein.) Pat. (1900)
  
  | 
Oxyporus populinus, also known as the mossy maple polypore and poplar bracket, is a species of fungus in the family Schizoporaceae. It is a plant pathogen that affects trees.
It is typically white (sometimes gray near the center and/or pinkish near the margin), more or less semicircular, and 2.5–20 centimetres (1–8 in) wide, with tough flesh, which is inedible.