Evergreen small tree, 5 m tall, c. 16 cm in diameter; branchlets thick, cylindrical with stipitate glands. Leaf blade leathery or thick-leathery, 6–9 leaves on branch-top, pendulous; young leaves violet, densely stipitate glands and floccose; leaf blade oblong-elliptic, apex acute, base broadly cuneate, slightly asymmetry, 15–21 × 5.0–7.5 cm, margin revolute, abaxial surface stipitate glands; midrib, veins and lateral veins slightly grooved adaxially, midrib and lateral veins prominent abaxially, lateral veins 15–18 pairs. Petiole 2–4 cm long, glandular. Inflorescence racemose, 10 or 11-flowered, rachis light brown, 7.0–9.5 cm long, densely stipitate glands; bract lanceolate, abaxial thinly stipitate or non-stipitate glands, adaxial densily glands and villous; pedicels 3.5–4.5 cm long with densely long glands. Calyx 7-lobed, lobes semi-circle, disparate, 2– 4 mm long, abaxial glandular, adaxial smooth. Corolla trumpet-shaped, 7-lobed, white, 7.5–8.0 × 8.0–10.0 cm, succulent, aromatic, rotund, abaxial stipitate or non-stipitate glands. Stamens 16, unequal, 4–6 cm long, filaments bald. Ovary conoid, 5–8 mm long, densely glands; style thick, 5– 8 cm long, faint green, densely stipitate or non-stipitate glands to the tip; stigma pale, disk-like, 2– 3 mm in diameter. Capsule cylindric, 3.0–3.5 × 1.0–1.2 cm, slightly curved, densely stipitate or non-stipitate glands. Phenology: Flowering from June to July; fruiting from October to November. Etymology: The specific epithet is named after the type locality Leigongshan. Vernacular name: Leigongshan Dujuan. Distribution: So far, this species is only known from the type locality Leigongshan Nature Reserve, Leishan County, Guizhou Province, southwest China. Habitat: This species grows in evergreen broad-leaved forests on limestone hills at 1,400 m. IUCN Red List category: Since only one population and a total of 50 mature individuals of this species were found in the area from where the type collections were made, the species seems to be very rare and restricted in distribution. A preliminary conservation assessment for the species gave it Critically Endangered (CR) status, based on criterion D (population less than 50 mature individuals) of the IUCN Red List criteria (IUCN, 2011). Therefore, careful protection of the species is warranted.