Citrus aurantiifolia

Bark is grayish-brown. Leaves are alternate, elliptic-oval, rounded at the base, 4-8 cm long, 2-5 cm wide, leathery, glossy, light purplish when young, dull dark-green above, paler beneath, with slightly toothed margins. Petioles are narrowly-winged. Flowers are bisexual, axillary, faintly fragrant or scentless, to 5 cm across, solitary or up to 10 in a cluster. Calyx is small, 4-5-lobed. Petals (4-5) are spreading, oblong, 8-12 mm long, 2.5-3 mm wide, fleshy, white or pinkish. Stamens (20-25) are bundled, white, with yellow anthers. The fruit is a hesperidium borne at the twig tips, 2.5-6 cm in diameter, almost globose, sometimes with a slight nipple at the apex. Fruit peel is green and glossy when immature, pale-yellow when ripe, somewhat rough to very smooth. Fruit pulp is greenish-yellow in 6 to 15 segments which do not readily separate, aromatic, juicy, very acid and flavorful, with few or many small seeds. Seeds are small, elliptic to oval, pointed, white.