Abstract The rare plant Primula esquirolii , a karst cave species in the family Primulaceae, endemic to Guizhou, China, and with presumed extremely small population, had not previously been observed since 1910. It is categorized as Endangered on China Species Red List. In surveys during 2018–2022, we were unable locate its type location Pingba county, but discovered unrecorded population of 44 ...
