Empress Tree

Paulownia tomentosa (also known as the Empress Tree, Princess Tree or Foxglove Tree; pao tong 泡桐 in Chinese; kiri 桐 in Japanese) is a deciduous tree in the genus Paulownia, native to central and western China, but invasive in the US. It grows to 10–25 m tall, with large heart-shaped to five-lobed leaves 15–40 cm across, arranged in opposite pairs on the stem. The flowers are produced before the leaves in early spring, on panicles 10–30 cm long, with a tubular purple corolla 4–6 cm long resembling a foxglove flower. The fruit is a dry egg-shaped capsule 3–4 cm long, containing numerous tiny seeds. The seeds are winged and disperse by wind and water. Pollarded trees do not produce flowers, as these only form on mature wood.
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