Pyrus calleryana (ornamental pears) is a species of pear, native to South east Asia- China and and Vietnam. It belongs to family Rosaceae. It is a deciduous tree growing to 8 to 10 m tall, often with a conic to rounded crown.
The leaves are oval, 4 to 8 cm long, glossy dark green above, and slightly paler below.
The white, five-petaled flowers are about 2 to 2.5 cm in diameter. They are produced abundantly in early spring, before the leaves expand fully.
The fruit of the ornamental pear is small (less than one cm in diameter) and hard.
In summer, the leaves are dark green and very smooth, and in autumn the leaves commonly turn brilliant colours, ranging from yellow and orange to purple-red. Sometimes, several of these autumn colours may be present on a single leaf.
Ornamental pear trees provide shade in the summer months and are highly valued for their spectacular autumn tones.
I would like to thank Mr Andrew Orme of Royal Botanic Gardens most sincerely for his kind advice and guidance.