A new species, Lysimachia speciosa, from western Hubei Province, Central China, is described and illustrated. The species is morphologically similar to L. deltoidea, especially var. cinerascens, but mainly differs from the latter by the recurved pubescence on the stem, petiole, and pedicel; the rhombic-ovate or ovate-lanceolate leaf blade; the longer petiole, calyx, corolla, stamens, and style; the erose lobes of the corolla; and the hairy ovary and capsule.