Suckering Mazus is perennial herb with small beautiful flowers which are pale blue or white. It produces sucker like runners. Flowers are tubular, 6-12 mm long, in short clusters arising directly from the root stalk. Flowers are 2-lipped, the upper lib darker, blue or violet, with two triangular lobes. The lower lip is much larger, white or pale blue, with rounded lobes and the throat with two prominent orange swellings within. Sepals are triangular blunt. Basal leaves are broadly inverted-egg shaped, rounded toothed, 2.5-8 cm, sometimes pinnately lobed near the base. The leaves are narrowed near the base to a short leaf-stalk. Flowering stems are mostly 6-8 cm. Flowering: April-July.