![]() The specific epithet ( cornuta) is a Latin word meaning "horned" or "bearing horns", referring to the operculum of the buds. The description was published in his book Relation du Voyage à la Recherche de la Pérouse. Labillardière collected the type specimen from granite outcrops on Observatory Island west of Esperance on 13 December 1792 during the Bruni d'Entrecasteaux expedition. Taxonomy and naming Įucalyptus cornuta was first formally described in 1800 by Jacques Labillardière. The fruit is a woody cylindrical to cup-shaped capsule 5–12 mm (0.20–0.47 in) long and 6–13 mm (0.24–0.51 in) wide with the seeds released through slits between the valves. Flowering occurs between January and May or from July to November and the flowers are yellowish green. Mature buds are elongated, 23–42 mm (0.91–1.65 in) long and 5–8 mm (0.20–0.31 in) wide with a horn-shaped operculum between four and seven times as long as the floral cup. The flower buds are arranged in groups of eleven or more on a rounded to flattened, unbranched peduncle 12–32 mm (0.47–1.26 in) long, the individual buds usually sessile. ![]() Adult leaves are arranged alternately, the same glossy green on both sides, usually lance-shaped, mostly 60–135 mm (2.4–5.3 in) long and 10–33 mm (0.39–1.30 in) wide on a petiole 5–20 mm (0.20–0.79 in) long. Young plants and coppice regrowth have egg-shaped to more or less round leaves 40–70 mm (1.6–2.8 in) long, 20–70 mm (0.79–2.76 in) wide and paler on the lower surface. It has rough, fibrous, brown to almost black bark on all or part of its trunk, smooth greyish bark above. New stems may fork out from the trunk or the lignotuber or multiple main stems may replace a single trunk in older specimens. Eucalyptus cornuta is a tree that typically grows to a height of 25 m (82 ft) with a crown 8–12 m (26–39 ft) wide, sometimes a mallee to 10 m (33 ft), and forms a lignotuber.
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