Two cultivars of the filbert tree or shrub, the purple-leaved filbert (Corylus maxima Purpurea) and the purple-leaf European filbert (Corylus avellana Fusco-Rubra), produce purple leaves and work well in landscapes as screens or hedges.
Cambodia (7.5 million). The national language is Khmer, spoken by about 85 percent of the population. It is co-official with French, which has perhaps 500,000 speakers. Chinese and Vietnamese are each spoken by about 400,000 people. Among tribal languages, Cham is the most important, with about 100,000 speakers.
The official language of Cambodia is Khmer. It originates from the Khmer people and has been influenced considerably by Sanskrit and Pali, particularly in the royal and religious registers, and through Hinduism and Buddhism. The language has come in close contact with Thai, Lao, Vietnamese and Cham due to geographical proximity and cultural connection. Khmerâs main distinction from its neighbouring languages is that it is not a tonal language.