Large evergreen trees.Leaves crowded branchlets,leathery,oblong,lanceolate,panicles terminal branches,flowers,flaxen,after tuberculosis.Large,slanting ovoid,ripe fruit yellow.Sex,not cold or warm,like the light.Average temperatures in the 20 30 degrees,the temperature falls to grow good  18 degrees below 10 degrees below are slow growing,stop growing.The most suitable scope of annual rainfall is 800 25  mm.On the soil and soil deep with strict requirements and underground water level is low,rich,good drainage and maturation of osteoporosis and sandy loam texture is ideal,in loam and neutral,acidic soil pH5.5 7.5.