Date de publication : Taxon 44(4): 585. 1995.

Statut biogéographique : Signalée de la région de la trijonction, sur la frontière Guyane française/Suriname (embouchure de la Ouarémapan, 200 m, 22/07/1972, stérile, Sastre 1430, MO). Cependant ce taxon n'est peut-être pas distinct de S. splendens (Dunal) Bohs 2015 (et peut-être aussi de S. endopogon (Bitter) Bohs 1995. D'après Bohs (1994: "These three taxa [Cyphomandra endopogon (= Solanum endopogon), C. hartwegii (= S. splendens) & C. oblongifolia (= S. proteanthum)] are distinct throughout most of their range; however, [...] intermediate forms between C. hartwegii and C. oblongifolia are found in Suriname. A closer examination of these taxa may show these zones of morphological overlap to be the result of hybridization. Alternatively, the three species may belong to a single, extremely variable taxon. Because of the marked floral differences between them, I have chosen to recognize these three taxa as distinct, albeit closely related, entities."

Type : Brésil, Rondônia, secondary vegetation, 20/08/1971, fleurs et fruits. Treelet, 2-3 m. tall. Flowers greenish. Connective red-purple. P.J.M. & H. Maas 416 (HT: NY00076895; IT: F0072839F, GF, K, MO-503524, P00386334, U0006785, U0006786, WISv0000010WIS , WISv0000011WIS).
Nom de remplacement dans le genre Solanum L. 1753 pour Cyphomandra oblongifolia Bohs 1988 [non Solanum oblongifolium Dunal 1816!].