Eucalyptus staigeriana

Eucalyptus staigeriana, commonly known as the lemon-scented ironbark, is a species of small ironbark tree that is endemic to the Cape York Peninsula. It has rough ironbark on the trunk and branches, lance-shaped to egg-shaped leaves that smell of lemons when crushed, flower buds in groups of seven, white flowers and oval to spindle-shaped fruit.

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Eucalyptus staigeriana is a tree that typically grows to a height of 12–21 m (39–69 ft) and forms a lignotuber. It has rough, dark grey or black ironbark on the trunk and branches. Young plants and coppice regrowth have greyish green to glaucous, egg-shaped leaves that are 38–70 mm (1.5–2.8 in) long and 20–40 mm (0.79–1.57 in) wide and petiolate. Adult leaves are arranged alternately, the same shade of dull-green to glaucous on both sides, lance-shaped to egg-shaped, 40–110 mm (1.6–4.3 in) long and 12–32 mm (0.47–1.26 in) wide on a petiole 4–14 mm (0.16–0.55 in) long. The leaves smell strongly of lemons when crushed. The flower buds are arranged on the ends of branchlets in groups of seven on a branched peduncle 7–16 mm (0.28–0.63 in) long, the individual buds on pedicels 2–6 mm (0.079–0.236 in) long. Mature buds are oval to spindle-shaped, 6–7 mm (0.24–0.28 in) long and 3–4 mm (0.12–0.16 in) wide with a conical to beaked operculum. Flowering occurs from December to February and the flowers are white. The fruit is a woody oval to spindle-shaped capsule 4–6 mm (0.16–0.24 in) long and 4–7 mm (0.16–0.28 in) wide with the valves near rim level or below it.