Centrostegia

{{Short description|Genus of flowering plants}}

{{Speciesbox

|image = Centrostegia thurberi 3.jpg

|image_caption = Centrostegia thurberi

|display_parents = 2

|genus = Centrostegia

|parent_authority = A.Gray ex Benth.

|species = thurberi

|authority = A.Gray

}}

Centrostegia is a monotypic genus of plants in the family Polygonaceae with a single species in the southwestern United States and northwestern Mexico. Centrostegia thurberi is known by the common names Thurber's spineflower and red triangles. It is a petite herb with a distinct red coloration.