Yews are small to medium-sized evergreen trees, growing 10–20 m (35–65 ft) (exceptionally up to 28 m or 92 ft) tall, with a trunk up to 2 m (6 ft 7 in) (exceptionally 4 m or 13 ft 1 in) in diameter. The bark is thin, scaly brown, and comes off in small flakes aligned with the stem. The leaves are flat, dark green, 1–4 centimetres (1⁄2–1+1⁄2 in) long, 2–3 mm (3⁄32–1⁄8 in) broad, and arranged spirally on the stem, but with the leaf bases twisted to align the leaves in …