Euphorbia fanjingshanensis (Euphorbiaceae), a new species from section Helioscopia in southwestern and central China

Euphorbia fanjingshanensis, a new species from southwestern and central China, is described and illustrated. Morphologically, it is most similar to E. micractina and E. hylonoma in E. subg. Esula sect.

Helioscopia, but can be readily distinguished by its lanceolate leaves with acute apices, reddish to crimson peduncles, and tuberculate capsules, and ovoid-globose dark brown seeds (ca. 2.5 × 2 mm). Phylogenetic analyses based on combined nuclear ITS and plastid ndhF sequences further confirm its placement within the clade of E. sect. Helioscopia, and reveal a close relationship with other species of the East Asian Clade.