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What are the effects of oregano
Oregano has the efficacy of relieving the symptoms, regulating the qi, clearing the summer heat and inducing dampness, and can be used for treating cold and fever, jaundice and itching of the skin.

Oregano (scientific name: OriganumvulgareL.) is a perennial semishrub or herbaceous, aromatic plant of the family Labiatae, genus Oregano; the rhizome is oblique and woody. Stems up to 60 cm tall, quadrangular, often leafless near base. Leaves stipulate, abaxially suborbicular, pilose, blade ovoid or oblong-ovoid, apex obtuse or slightly obtuse, bright green above, often with purple halo, pale green below, bracts mostly sessile, inflorescences corymbose panicles, many-flowered densely crowded, composed of spikelets; bracts acute, green or with purple halo, calyx campanulate, corolla purplish-red, light red to white, tubular campanulate, bisexual corolla, limb distinctly bilabiate, filaments Filaments filiform, flattened, glabrous, anthers ovoid, style slightly beyond stamens, lobes subulate. Nutlets ovoid, flowering in July-September, fruiting in October-December.

Also found in Europe, Asia, and North Africa, and introduced in North America. Born on roadsides, mountain slopes, forest understories, and grasslands, 500-3600 m above sea level.