Paulownia Facts



Common Name(s): Paulownia, Royal Paulownia, Princess Tree, Kiri
Scientific Name: Paulownia tomentosa
Distribution:: Native to eastern Asia; also planted in eastern North America
Tree Size: 30-65 ft (10-20 m) tall, 2-4 ft (.6-1.2 m) trunk diameter
Average Dried Weight: 18 lbs/ft3 (280 kg/m3)
Specific Gravity (Basic, 12% MC): .25, .28
Janka Hardness: 300 lbf (1,330 N)
Modulus of Rupture: 5,480 lbf/in2 (37.8 MPa)
Elastic Modulus: 635,000 lbf/in2 (4.38 GPa)
Crushing Strength: 3,010 lbf/in2 (20.7 MPa) Shrinkage: Radial: 2.4%, Tangential: 3.9%, Volumetric: 6.4%, T/R Ratio: 1.6

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www.dongmingsanxin.com Actually how paulownia is tied to the history and being of these countries, is understood from the fact, that it is a part even of the official political life. The Japanese, who like aesthetics, as their symbols have chosen paulownia precisely for an emblem in the prime minister’s office – this is so called “mon“ – a word, used to indicate and underline one’s personal or family identity; its meaning in fact, is close to “coat of arms“ and carrying approximately the same messages. So – the coat of arms in the prime minister’s office in Japan is a stylized picture of paulownia . It is hardly to find more definite manner to express the national importance of paulownia for the Japanese people by its presence on the Order of the Rising Sun. It is the first Japanese order, founded in 1875, which is serviced to persons with credits to the country. We also cannot omit the presence of paulownia on the Japanese currency – on the coins of 500 yen, it is again – the pa...
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