Dendrobium bigibbum Lindl., Paxton's Fl. Gard. 3: 25 (1852).

Subtribe: Dendrobiinae

Country: New Guinea, Australia

Otherwise known as 'The Cooktown Orchid', Dendrobium bigibbum var. superbum is in the section Phalananthe. It bears rounded purple flowers on long arching spikes.

This was originally listed as Dendrobium bigibbum var. superbum however this name is not valid.

Invalid names (RHS search):
Dendrobium bigibbum var. albomarginatum F.M.Bailey, Bot. Bull. Dept. Agric. Queensland 2: 18 (1891).
Dendrobium bigibbum var. albopurpuratum auct., Gard. Chron., III, 18: 396 (1895).
Dendrobium bigibbum var. album F.M.Bailey, Queensl. Fl. 5: 1524 (1902).
Dendrobium bigibbum var. candidum Rchb.f., Gard. Chron., n.s., 9: 168 (1878).
Dendrobium bigibbum subvar. candidum H.J.Veitch, Man. Orchid. Pl. 3: 23 (1887).
Dendrobium bigibbum var. compactum C.T.White, Austral. Orchid Rev. 6: 53 (1941).
Dendrobium bigibbum f. compactum (C.T.White) G.Piper, Austral. Orchid Rev. 15: 40 (1950), nom. inval.
Dendrobium bigibbum subvar. compactum (C.T.White) St.Cloud, N. Queensland Naturalist 24: 18 (1956).
Dendrobium bigibbum var. georgei C.T.White, Proc. Roy. Soc. Queensland 47: 81 (1936).
Dendrobium bigibbum subsp. laratensis Clemesha, Orchadian 6: 27 (1978).
Dendrobium bigibbum var. macranthum F.M.Bailey, Bot. Bull. Dept. Agric. Queensland 10: 24 (1895).
Dendrobium bigibbum var. phalaenopsis (Fitzg.) F.M.Bailey, Syn. Queensl. Fl.: 509 (1883).
Dendrobium bigibbum f. phalaenopsis (Fitzg.) St.Cloud, N. Queensland Naturalist 24: 18 (1956).
Dendrobium bigibbum var. sumneri (F.Muell.) F.M.Bailey, Syn. Queensl. Fl.: 509 (1883).
Dendrobium bigibbum var. superbiens (Rchb.f.) F.M.Bailey, Syn. Queensl. Fl.: 509 (1883).
Dendrobium bigibbum f. superbium G.Piper, Austral. Orchid Rev. 15: 40 (1950).
Dendrobium bigibbum var. superbum Rchb.f., Gard. Chron., n.s., 10: 748 (1878).
Dendrobium bigibbum subvar. superbum (Rchb.f.) H.J.Veitch, Man. Orchid. Pl. 3: 23 (1887).
Dendrobium bigibbum var. venosum F.M.Bailey, Bot. Bull. Dept. Agric. Queensland 7: 18 (1890).
Dendrobium bigibbum f. venosum F.M.Bailey, Queensl. Fl. 5: 1524 (1902).