ⓘ Gesneria pauciflora

                                     

ⓘ Gesneria pauciflora

Gesneria pauciflora is a rare species of flowering plant in the family Gesneriaceae known by the common name yerba maricao de cueva. It is endemic to Puerto Rico, where there are only three populations remaining. It was federally listed as a threatened species of the United States in 1995.

It is a small shrub with dark green, glossy leaves and tubular orange or yellow flowers about 2 cm in length. It grows in wet forest habitats in the Maricao Commonwealth forest in Puerto Rico. It grows along the Maricao river, SECO river and a tributary of the Lajas river in rocky serpentine soils. Plants can grow in the riverbed between the black or greenish serpentine rock and gravel. Sometimes the plant is submerged during high water. The plant is gregarious, growing in colonial mats. Plants bloom throughout the year, with most flowering occurs during the rainy season in August, September and October.

Threats to this species include the practices of forest management, such as trail construction, erosion, landslides, and other forces that have an impact on the environment. The specific epithet pauciflora in Latin, few-flowered.