Boerhavia dominii, commonly known as tarvine, is a species of flowering plant in the four o'clock family, Nyctaginaceae. It is native to Australia.

It is a prostrate perennial herb growing up to 1 metre in diameter. Leaves are about 40 mm long and 20 mm wide and may have a wavy edge. It produces pale pink or pale purple flowers followed by small, hairy, furrowed fruits.

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