Salvia vasta 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 Hubei

Hubei

' Hupeh) is a province in Central China. The name of the province means "north of the lake", referring to its position north of Lake Dongting...

 province in China, growing on the margins of fields and on hillsides. The plant grows on erect stems, typically 30 to 40 cm (11.8 to 15.7 in) tall, sometimes to 100 cm (39.4 in). Inflorescences are 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...

-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 15 to 35 cm (5.9 to 13.8 in) long, with a yellow or purple corolla that is 2.5 cm (0.984251968503937 in).

There are two named varieties. The margin of the middle lobe of the corolla lip of Salvia vasta var. vasta is entire or undulate, while that of Salvia vasta var. fimbriata is fimbriate-denticulate.