Roylea

Roylea is a genus of flowering plants in the mint family, Lamiaceae. It is native to the Himalayas and surrounding regions, including parts of India, Pakistan, Nepal, and China.

The genus typically consists of shrubs or subshrubs. A notable characteristic of Roylea species is their aromatic foliage. The leaves are often opposite and toothed or serrated. Flowers are typically arranged in dense clusters or whorls in the leaf axils.

One of the better-known species is Roylea cinerea, often called Himalayan Wild Mint or Hindu Rose. It is used in traditional medicine in some parts of its native range and has been investigated for its potential pharmacological properties. The plant's essential oils contribute to its distinctive aroma and are thought to possess antimicrobial or anti-inflammatory qualities.

Due to its hardiness and aromatic qualities, Roylea cinerea is sometimes cultivated as an ornamental plant, particularly in rock gardens or similar settings where it can receive good drainage.

Further research is ongoing to fully understand the chemical composition and medicinal potential of Roylea species.