Spreng.Synonym: P. incanus Link.Family: Labiatae; Lamiaceae.
Habitat: Temperate Himalayas from Simla to Sikkim and in Bihar, Madhya Pradesh and Western Ghats.
Folk: Laal-Aghaadaa (Maharashtra).Action: Leaves—styptic, febrifuge.
The aerial parts yielded an essential oil (0.35%) containing piperitenone oxide (45.01) and cis-pipestone oxide (35.70%) as major constituents.The antimicrobial activity of 10 mg of the oil was found to be the same as that of 10 units of penicillin G. sodium. The essential oil also exhibited cardiac depressant, respiratory stimulant and vasoconstrictor action. The leaves and flowering tops, in addition to the oil, also contain resin and tannin.