| Macroscopic characters | shape | Broadly sessile; dimidiate; rosette shaped; basidiocarps may fuse laterially |
| size | Up to 7 cm broad ; 12 cm long; 6-8 mm thick |
| texture | Tough; flexible |
| pileus | Bright yellowish brown becoming reddish brown with age; hirsute to hispid to scrupose to smooth with age |
| stipe | None |
| context | Dark brown |
| pore surface | Light golden brown when young , brown with age |
| pores | Radially elongated to lamellate; 1-2 per mm |
| tube layer(s) | Up to 5 mm thick |
| Microscopic characters | hyphal system | Trimitic; skeletal hyphae thick-walled, golden brown; binding hyphae rare, thick-walled, light golden brown, tortuous |
| clamp connections | Generative hyphae thin to thick-walled with clamps |
| sterile elements | Cystidia abundant in hymenium; subulate to obtuse; thin to thick-walled with age; some extremely elongated; not or slightly projecting; 25-95 x 3-7 µm; usually smooth; more rarely with a small crown of crystals |
| basidiospores | Cylindrical; 9-13 x 3-5 µm; hyaline; smooth |
| Habitat characters | substrate/host | Usually on dead coniferous wood |
| seasonality | Annual to perennial |
| type of decay | Brown rot |
| range | Widespread in North America; seemingly present wherever there are coniferous forests; circumglobal thorough USSR, Japan, and China to Europe |
| Notes | |
| References | Gilbertson & Ryvarden, 1986; Overholts, 1953 |
