Acronychia acidula—Lemon Aspen; Lemon Wood—RUTACEAE

Acronychia acidula

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Habitat— Usually grows in well developed upland and mountain rain forest on a variety of sites. This species is favoured by disturbance and is a characteristic component of rain forest regrowth.

Distribution— Endemic to Queensland, occurs in North East Queensland and southwards as far as coastal central Queensland. Altitudinal range from near sea level to 1150 m.

Description— Medium sized tree

Local occurrences


Leaves.— 1–Foliolate, opposite, entire or inconspicuously toothed, more conspicuous on earlier leaves, with distinct oil dots. Leaf blades about 10.5 to 19.5 x 5 to 11 cm. About 8 to 20 main lateral veins on each side of the midrib. Underside of the leaf blade only slightly paler than the upper surface. Crushed leaves often emit an odour like mango skin

Acronychia acidula
Acronychia acidula

Inflorescence.— Usually more than 2 cm long. Flowers about 9.5 mm long. Stamens eight, dimorphic, four long and four short, in one whorl, long and short stamens alternating. Disk and style yellow. Ovary and stigma green.

Flowering.—Summer to Autumn

Fruit.—Fruits ± globular, about 20 mm diam. Seeds about 4.5 mm long

Ripe.—Autumn to Winter