Veronica decorosa is a flowering plant in the family Plantaginaceae and grows in South Australia. It has white flowers borne on long stems.
Veronica decorosa is a small shrub to high and similar width and mostly smooth. The leaves are sessile, linear to oval-linear shaped, long, wide and the margins entire or sparsely toothed and recurved. The flowers are in a long racemes, white, occasionally purple in the centre, four lobed, each lobe long, blunt or rounded, upper lobe wider with purple lines, bracts narrowly oval-shaped and long. Flowering occurs from July to November and the fruit is a broad-elliptic shaped capsule about long, wide and ribbed.
Veronica decorosa was first formally described in 1853 and the description was published in Linnaea: . The specific epithet (decorus) means "graceful".
This species grows sometimes on rocky situations, usually on moist and sheltered sites in the Flinders Ranges and south to near St Vincents Gulf.