Plantago rigida

{{short description|Species of flowering plant in the plantain family Plantaginaceae}}

{{speciesbox

|image =

|image_caption =

|genus = Plantago

|species = rigida

|authority = Kunth

}}

Plantago rigida, colloquially known as "Colchón de agua" (water mattress), is a species of flowering plant in the plantain family found in the high-altitude páramo biome of South America.