What is "thymus serpyllum"

Thyme \Thyme\ (t[imac]m), n. [OE. tyme, L. thymum, Gr. qy`mon, qy`mos; cf. qy`ein, to sacrifice, qy`os a sacrifice, offering, incense: cf. F. thym; -- perhaps so named because of its sweet smell. Cf. Fume, n.] (Bot.) Any plant of the labiate genus Thymus. The garden thyme ( Thymus vulgaris) is a warm, pungent aromatic, much used to give a relish to seasoning and soups.

Ankle deep in moss and flowery thyme.
--Cowper.

Cat thyme, a labiate plant ( Teucrium Marum) of the Mediterranean religion. Cats are said to be fond of rolling on it.
--J. Smith (Dict. Econ. Plants).

Wild thyme, Thymus Serpyllum, common on banks and hillsides in Europe.

I know a bank where the wild thyme blows.
--Shak.

Thymus serpyllum, known by the common names of Breckland thyme, wild thyme or creeping thyme, is a species of flowering plant in the mint family Lamiaceae, native to most of Europe and North Africa. It is a low, usually prostrate subshrub growing to tall with creeping stems up to long. The oval evergreen leaves are 3–8 mm long. The strongly scented flowers are either lilac, pink-purple, magenta, or a rare white, all 4–6 mm long and produced in clusters. The hardy plant tolerates some pedestrian traffic and produces odors ranging from heavily herbal to lightly lemon, depending on the variety.