Dendrobium rumphiae Rchb.f. in W.G.Walpers, Ann. Bot. Syst. 6: 303 (1861).
Syn: Cadetia angustifolia Blume, Rumphia 4: 39 (1849).
Plant cultivated at the Leiden botanical garden. Accession number 20031779.
Plant collected in the Central Highlands, PNG.
Leiden herbarium number 24657