Avocado as a diminutive in Australian English, a clipped form, "avo", has since become a common colloquialism in South Africa and the United Kingdom. It is known as "butter fruit" in parts of India and goes by the name "bơ" [ɓɘː] in Vietnamese, which is the same word that is used for butter. In eastern China, it is known as "è lí" ("alligator pear") or "niú yóu guǒ" ("butter fruit"). In Taiwan, it is known as "luò lí" or "cheese pear". The subtropical species needs a climate without frost and with little wind. High winds reduce the humidity, dehydrate the flowers,
Pear ("Pyrus calleryana" 'Bradford') in particular has become widespread in North America, and is used only as an ornamental tree, as well as a blight-resistant rootstock for "Pyrus communis" fruit orchards. The Willow-leaved pear ("Pyrus salicifolia") is grown for its attractive, slender, densely silvery-hairy leaves. The following cultivars have gained the Royal Horticultural Society's Award of Garden Merit:- The purely decorative cultivar "P. salicifolia" ‘Pendula’, with pendulous branches and silvery leaves, has also won the award. Summer and autumn cultivars of "Pyrus communis", being climacteric fruits, are gathered before they are fully ripe, while they are still green, but snap off