Gratiola peruviana, commonly known as austral brooklime, is a small perennial herb in the family Plantaginaceae.

It grows to between 10 and 30 centimetres high and has pink or white tubular flowers with red-purple stripes inside.

The stem-clasping ovate leaves are arranged in opposite pairs and have shallowly toothed edges.

[3] It occurs in the vicinity of waterbodies in shallow water, mud or dried areas.

[3] In South America, the species is native to Peru, Brazil, Chile and Argentina.