Perennial herb with prostrate to suberect annual stems. Stems usually with lines of long hairs across the length. Leaves ovate to obovate, variously hairy or nearly hairless. Inflorescences few-flowered, axillary, spike-like, usually one inflorescence per node. Corolla 6-8 mm long, white, with or without maroon lines on the lip. Fruit a capsule, hairless except for a few hairs at the apex. See Justicia exigua and J. matammensis for comparison.