Citrus x jambhiri Lush.

Lushington, A.W. (1910) Indian Forester 36: 342. Type: Not indicated but probably a cultivated plant at Dehra Dun, India (?not preserved).

Lemon; Lemon, Bush; Bush Lemon

A small tree seldom exceeding 30 cm dbh.

Oil dots large and conspicuous, readily visible to the naked eye. Leaf blades about 5-10 x 2.5-6 cm. Midrib slightly raised on the upper surface. Straight spines often present on the twigs.

Petals glabrous, usually pink on the outer surface, about 14-20 x 5-8 mm, oil dots yellowish, large and conspicuous, readily visible to the naked eye on the outer surface of the petals. Stamens about 25-30, staminal filaments about 9-18 mm long. Disk at the base of the ovary, inside the whorl of staminal filaments.

Fruits globose, about 6-11 x 7-11 cm, surface bullate. Pulp yellow or yellowish green, very tart and acidic.

First pair of leaves ovate, margins toothed. Oil dots large, visible to the naked eye. At the tenth leaf stage: petiole winged, oil dots clearly visible to the naked eye; strong odour from crushed leaves; a few thorns present in the leaf axils. Seed germination time 17 to 21 days.

An introduced species originally from sub-tropical Asia, widely cultivated in Australia and now naturalised in NEQ. Altitudinal range from near sea level to 800 m. Usually grows in disturbed areas, around old camp sites, on farmland and in rain forest regrowth.