Roylea

{{Short description|Genus of flowering plants}}

{{Speciesbox

| image = Plantae Asiaticae rariores, or, Descriptions and figures of a select number of unpublished East Indian plants (Tab. 74) BHL449586.jpg

| display_parents = 2

| genus = Roylea

| parent_authority = Wall. ex Benth.

| species = cinerea

| authority = (D.Don) Baill.

| synonyms_ref =

| synonyms =

• Ballota cinerea D.Don
• Roylea elegans Wall. ex Benth.
• Phlomis calycina Roxb.
• Roylea calycina (Roxb.) Briq.

}}

Roylea is a genus of flowering plant in the family Lamiaceae, first described as a genus in 1830. It contains only one known species, Roylea cinerea, native to the Western Himalayas of Nepal and northern India.[http://apps.kew.org/wcsp/namedetail.do?name_id=180129 Kew World Checklist of Selected Plant Families]