| Species name | Clavulinopsis helvola |
| Common name | Yellow club |
| Fruit body | 2-7cm, yellow, unbranched, spindle-shaped/club-shaped, flattened, grooved, blunt tips (sometimes forked) |
| Stem | Absent |
| Growth form | Solitary, trooping, tufted |
| Spore print | White |
| Spore features | ellipsoidal, warty-angular |
| Habitat | Low nutrient acid grassland |
| Season | Autumn |
| Distribution | Widespread, common |
| Identifying feature | Warty spores |
| Similar species | Similar to C.fusiformis (which is larger and has smooth spores), C.laeticolor (which has a circular cross section and smooth spores) and C.luteoalba (which has pale tips and smooth spores) |
Irish Grassland Fungi 