Salvia mairei is a perennial plant

Perennial plant

A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...

 that is native to Yunnan

Yunnan

Yunnan is a province of the People's Republic of China, located in the far southwest of the country spanning approximately and with a population of 45.7 million . The capital of the province is Kunming. The province borders Burma, Laos, and Vietnam.Yunnan is situated in a mountainous area, with...

 province in China. The plant grows on one to a few stems from 20 to 40 cm (7.9 to 15.7 in) tall. The leaves are cordate-ovate

Leaf shape

In botany, leaf shape is characterised with the following terms :* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...

 to subhastate-ovate, typically ranging in size from 3.5 to 5 cm (1.4 to 2 in) long and 1.8 to 5 cm (0.708661417322835 to 2 in) wide, though they are sometimes larger. Inflorescences are 4-flowered verticillasters on terminal raceme

Raceme

A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

s or panicle

Panicle

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....

s that are 8 to 11 cm (3.1 to 4.3 in) long. The corolla is violet or purple, 1.5 to 1.8 cm (0.590551181102362 to 0.708661417322835 in) long.