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Paulownia tomentosa is cultivated as an ornamental tree in parks and gardens. It has gained the Royal Horticultural Society's Award of Garden Merit. [18] [19] Because of its tolerance and flexibility, Paulownia functions ecologically as a pioneer plant. Its nitrogen-rich leaves provide good fodder and its roots prevent soil erosion.
Paulownia tomentosa. Paulownia is a genus of angiosperm trees, and one of the fastest-growing trees in the world. [12] Paulownia tomentosa can grow over 30 metres (98 ft) tall and has large heart shaped leaves ranging from 10–20 centimetres (4–8 in) wide and 15–30 centimetres (6–12 in) long with a 10–20 centimetres (4–8 in)-long petiole. [13]
Paulownia elongata is a species of tree in the family Paulowniaceae, native to Asia. The plant's leaves are very large and pubescent ('fuzzy—hairy'). This species can withstand a very wide range of environmental conditions.
The light purple flowers bloom from May to June; while the flower of Paulownia tomentosa has purple stripes, that of Paulownia coreana does not. The flower has five divided petals, each 5–7.5 cm (2–3 in) in length. The tree bears light brown fruit from October to November; the fruits are elliptical, with sticky puffs.
However of these four genera currently only Paulownia is a recognized member of Paulowniaceae. Paulownia; Brandisia is settled in the Orobanchaceae as sister to the Pterygiella due to molecular data from 9 chloroplast markers and samples from 6 of the 11 Brandisia species.
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Paulownia kawakamii, commonly known as the sapphire dragon tree, [2] is a tree species in the family Paulowniaceae. The tree is native to Taiwan , eastern China , and Japan . It is deciduous and bears many large violet flowers in early spring before the leaves appear.
Paulownia mikado T.Itô Paulownia fortunei commonly called the dragontree , dragon tree or Fortune 's empress tree , is a deciduous tree in the family Paulowniaceae, native to southeastern China (including Taiwan), Laos and Vietnam.