Acacia melanoxylon R.Br. Mimosaceae. Australian Blackwood. Tree. Distribution: Eastern Australia. Tree. Invasive weed in South Africa, Portugal, California. Local uses: analgesic. Causes allergic contact dermatitis due to 2,6,dimethoxybenzoquinone. Pinnate leaves of young plant drop off and phylloclades are formed instead. Photographed in the Medicinal Garden of the Royal College of Physicians, London.

A plant (Mimosa bigemina Linn.): branch with flowers, pods and seeds and separate flower and seeds. Coloured line engraving.

Various leaf forms, including succulent and compound. Watercolour by H. Cowell.

A galled tree (Mimosa cinerea), a Jamaica pepper tree (Pimenta dioica) and a Turkey rhubarb plant (Rheum palmatum). Coloured engraving, c. 1827.

Acacia melanoxolon

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