Eucalyptus longifolia

Tree to 35 m tall; bark rough, persistent to branches, fibrous, flaky, grey. Juvenile leaves petiolate, opposite for a few pairs then alternate, ovate to broadly lanceolate, to 20 cm long, 9 cm wide, slightly discolorous, dull, green to grey-green; adult leaves petiolate, alternate, falcate to lanceolate, 9–25 cm long, 0.8–3.5 cm wide, concolorous, dull, green to grey-green; reticulation moderate to dense, with island oil glands. Inflorescences axillary, unbranched; peduncles to 3.4 cm long, usually pendulous, 3-flowered; buds pedicellate, ovoid to diamond-shaped, to 2.7 cm long, 1.3 cm wide, scar present; operculum conical; stamens inflexed; anthers versatile, dorsifixed, oblong; ovules in 8 or more vertical rows; flowers white. Fruit pedicellate, cup-shaped or cylindrical, to 1.5 cm long, 1.6 cm diam.; disc descending; valves 3 or 4, rim level or enclosed; seed yellow to brownish black, pyramidial, margins toothed, hilum terminal. Flowers Jun.–Nov.