Characteristics of Botany is a small tree in hardwood, stem and branches spiny leaves, long, slightly reduced with small blade type 1 leaves. Alternate, ovate, resemble the leaves 2 leaves for each other.Stem the spread is as big as the leaf, saw blade is 2 when wide 2.5-4 cm long, 4-7 เซ๋นติ meters green leaf to leaf surface smooth, as it is quite thick, fragrant, because the oil glands. The result is that hesperitium (effect) leaves orange top dark under the lighter flowers into clusters 3 - 5.Petals white, yellow pollen. Easy to fall, fragrant with dark green skin like lemon shell rough, polar head end of a stopper, the light is dark green. When ripe fruit will turn bright yellow. Varieties with the small.Inside the seed lots.