Introduction of Paulowina in Pakistan
Introduction of Paulowina in Pakistan
K. M. Siddiqui and M. Khan
ABSTRACT
Paulownia is the only tree genus in the family Scrophulariaceae which is primarily
herbaceous. The genus has nine species of fast growing trees indigenous to China with
wide distribution from 18 to 40° North latitudes and from 100 to 128° East longitudes. It
grows equally well on the plains and in mountainous regions upto 2000 m altitude (Anon,
1986). One of its species (P. tomentosa) was accidentally introduced into United States
about 150 years ago and now appears throughout the southern and central hardwood
regions as naturalized wild plantation tree (Beckjord et al., 1984; Hardie et al., 1989). It
also grows in Japan, Brazil, Paraguay and Argentina. Presently, the interest in the
Paulownia species is increasing due to its ability in rooting and its tolerance of rocky,
disturbed and relatively infertile soils. It is grown as an ornamental and in shelterbelts
(Beckjord and Melhuish, 1983).
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December 1989
Vol. 39, Iss. 4
