Amanita flavella is a species of mycorrhizalfungus from Amanitaceae family that can be found in New South Wales, Australia. The species have a convexed lemon-yellow coloured cap which is 90 millimetres (3.5 in) in diameter. They can also be yellowish-orange coloured and have crowded gills which are pale yellow in colour. The stem is central and just like the cap is 90 millimetres (3.5 in) high and yellowish white in colour. It is slightly bulbous, and is enclosed into a volva. The ring is flared and white coloured. The ring is ample, membranous, and yellowish in colour. The spores are 8.5–10 millimetres (0.33–0.39 in) high and 6–6.5 millimetres (0.24–0.26 in) wide, and are white coloured, amyloid and elipsoid. The species is similar to Amanita flavoconia and Amanita flavipes.