About the Jarrah Tree

Jarrah is a tree that sometimes grows to a height of up to 50 m (160 ft) with a diameter at breast height (DBH) of 3.5 m (11 ft), but more usually 40 m (130 ft) with a DBH of up to 2 m (6 ft 7 in). Less commonly it can be a small mallee to 3 m. Older specimens have a lignotuber and roots that extend down as far as 40 m (100 ft). It is a stringybark with rough, greyish-brown, vertically grooved, fibrous bark which sheds in long flat strips. The leaves are arranged alternately along the branches, narrow lance-shaped, often curved, 8–13 cm (3–5 in) long and 1.5–3 cm (0.6–1 in) broad, shiny dark green above and paler below. There is a distinct midvein, spreading lateral veins and a marginal vein separated from the margin. The stalked flower buds are arranged in umbels of between 4 and 8, each bud with a narrow, conical cap 5–9 mm (0.2–0.4 in) long. The flowers 1–2 cm (0.4–0.8 in) in diameter, with many white stamens and bloom in spring and early summer. The fruit are spherical to barrel-shaped, and 9–20 mm (0.4–0.8 in) long and broad.

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