compressibulbum Schuit. & Peter B.Adams Dendrobium compressicaule J.J.Sm. Dendrobium compressimentum J.J.Sm. Dendrobium compressistylum J.J.Sm. Dendrobium compressum Lindl. Dendrobium conanthum Schltr. Dendrobium concavum J.J.Sm. Dendrobium concolor (Z.H.Tsa & S.C.Chen) Schuit. & Peter B.Adams Dendrobium confinale Kerr Dendrobium confluens J.J.Sm. Dendrobium confundens Kraenzl. Dendrobium conicum J.J.Sm. Dendrobium connatum (Blume) Lindl. Dendrobium connatum var. connatum Dendrobium connatum var. distachyon (Lindl.) P.O'Byrne Dendrobium connexicostatum J.J.Sm. Dendrobium conspicuum Bakh.f. Dendrobium constrictum J.J.Sm. Dendrobium contextum Schuit. & de Vogel ex J.M.H.Shaw Dendrobium convexipes J.J.Sm. Dendrobium convexum (Blume) Lindl. – piggyback orchid Dendrobium convolutum Rolfe Dendrobium copelandianum F.Muell. & Kraenzl. Dendrobium coplandii (F.M.Bailey) Rupp Dendrobium corallorhizon J.J.Sm. Dendrobium coriaceum (D.L.Jones & M.A.Clem.) J.M.H.Shaw – inland rock orchid Dendrobium correllianum A.D.Hawkes & A.H.Heller Dendrobium corrugatilobum J.J.Sm. Dendrobium corticicola Schltr. Dendrobium corydaliflorum J.J.Wood Dendrobium courtauldii Summerh. ex J.J.Wood Dendrobium cowenii P.O'Byrne & J.J.Verm. Dendrobium crabro Ridl. Dendrobium crassicaule Schltr. Dendrobium crassiflorum J.J.Sm. Dendrobium crassifolium Schltr. Dendrobium crassilabium P.J.Spence Dendrobium crassimarginatum L.O.Williams Dendrobium crassinervium J.J.Sm. Dendrobium crassulum (Schltr.) J.J.Sm. Dendrobium crassum (D.L.Jones, B.Gray & M.A.Clem.) J.M.H.Shaw – tablelands feather orchid Dendrobium crenatifolium J.J.Sm. Dendrobium crenatilabre J.J.Sm. Dendrobium crenatilobum (P.O'Byrne & J.J.Verm.) Schuit. & Peter B.Adams Dendrobium crenicristatum Ridl. Dendrobium crenulatum J.J.Sm. Dendrobium crepidatum Lindl. & Paxton Dendrobium crispatum (G.Forst.) Sw. Dendrobium crispilinguum P.J.Cribb Dendrobium crocatum Hook.f. Dendrobium croceocentrum J.J.Sm. Dendrobium crucilabre J.J.Sm. Dendrobium cruentum Rchb.f. Dendrobium crumenatum Sw. – pigeon orchid Dendrobium cruttwellii T.M.Reeve Dendrobium crystallinum Rchb.f. Dendrobium cuculliferum J.J.Sm. Dendrobium cucullitepalum J.J.Sm. Dendrobium cucumerinum MacLeay ex Lindl. – cucumber orchid Dendrobium cultrifolium Schltr. Dendrobium cumulatum Lindl. Dendrobium cuneatum Schltr. Dendrobium cuneilabium (Schltr.) J.J.Sm. Dendrobium cuneilabrum J.J.Sm. Dendrobium cunninghamii Lindl. Dendrobium curviflorum Rolfe Dendrobium curvimentum J.J.Sm. Dendrobium curvisepalum Ridl. Dendrobium curvum Ridl. Dendrobium cuspidatum Lindl. Dendrobium cuthbertsonii F.Muell. Dendrobium cyanocentrum Schltr. Dendrobium cyanopterum Kraenzl. Dendrobium cyatopoides J.J.Sm. Dendrobium cyclobulbon Schltr. Dendrobium cyclolobum Schltr. Dendrobium cyclopense J.J.Sm. Dendrobium cylindricum J.J.Sm. Dendrobium cymatoleguum Schltr. Dendrobium cymbicallum P.O'Byrne & J.J.Wood Dendrobium cymbidioides (Blume) Lindl. Dendrobium cymbiforme Rolfe Dendrobium cymboglossum J.J.Wood & A.L.Lamb Dendrobium cymbulipes J.J.Sm. Dendrobium cynthiae Schuit. Dendrobium cyrilianum P.O'Byrne, Gokusing & J.J.Wood Dendrobium cyrtolobum Schltr. Dendrobium cyrtosepalum Schltr. D Dendrobium dactyliferum Rchb.f. Dendrobium dactylodes Rchb.f. Dendrobium daenikerianum Kraenzl. Dendrobium dahlemense Schltr. Dendrobium daimandaui J.J.Wood Dendrobium daklakense Tich., Schuit. & J.J.Verm. Dendrobium dalatense Gagnep. Dendrobium danipense Ormerod Dendrobium dantaniense Guillaumin Dendrobium darjeelingensis Pradhan Dendrobium davaoense Lubag-Arquiza Dendrobium dearei Rchb.f. Dendrobium debile Schltr. Dendrobium decoratum (M.A.Clem. & Cootes) Schuit. & Peter B.Adams Dendrobium decumbens Schltr. Dendrobium decumbens var. decumbens Dendrobium decumbens var. stenophyllum