Calamus pilosellus Becc. Calamus pilosissimus Becc. Calamus platyspathus Mart. ex Kunth Calamus plicatus Blume Calamus poensis Becc. Calamus pogonacanthus Becc. ex H.J.P.Winkl. Calamus pogonotium W.J.Baker Calamus poilanei Conrard Calamus politus (Fernando) W.J.Baker Calamus polycladus Burret Calamus posoanus Rustiami Calamus powlingii A.J.Hend. Calamus praetermissus J.Dransf. Calamus propinquus (Becc.) A.J.Hend. Calamus pseudoconcolor (J.Dransf.) W.J.Baker Calamus pseudomollis Becc. Calamus pseudotenuis Becc. Calamus pseudozebrinus Burret Calamus psilocladus J.Dransf. Calamus pycnocarpus (Furtado) J.Dransf. Calamus pygmaeus Becc. Calamus quangngaiensis A.J.Hend. & N.Q.Dung Calamus radiatus Thwaites Calamus radicalis H.Wendl. & Drude Calamus radulosus Becc. Calamus reinwardtii Mart. Calamus reticulatus Burret Calamus retroflexus J.Dransf. & W.J.Baker Calamus rhabdocladus Burret Calamus rheedei Griff. Calamus rhomboideus Blume Calamus rhytidomus Becc. Calamus ridleyanus Becc. Calamus robinsonianus Becc. Calamus rotang L. Calamus ruber Reinw. ex Mart. Calamus rudentum Lour. Calamus rugosus Becc. Calamus rumphii Blume Calamus ruptilis (Becc.) W.J.Baker Calamus ruptiloides A.J.Hend. Calamus ruvidus Becc. Calamus sabalensis J.Dransf. Calamus salicifolius Becc. Calamus saltuensis A.J.Hend. Calamus samian Becc. Calamus sandsii Rustiami Calamus sarawakensis Becc. Calamus sashae J.Dransf. & W.J.Baker Calamus scabridulus Becc. Calamus scabrispathus Becc. Calamus scapiger (Becc.) W.J.Baker Calamus schistoacanthus Blume Calamus schlechteri (Burret) W.J.Baker Calamus schlechterianus Becc. Calamus scipionum Lour. Calamus scleracanthus Becc. ex K.Heyne Calamus sedens J.Dransf. Calamus senalingensis J.Dransf. Calamus septimus A.J.Hend. & Rustiami Calamus seriatus A.J.Hend. & N.Q.Dung Calamus seropakensis A.J.Hend. Calamus serpentinus (J.Dransf.) W.J.Baker Calamus serrulatus Becc. Calamus sessiliflorus A.J.Hend. & Rustiami Calamus simplex Becc. Calamus siphonospathus Mart. ex Walp. Calamus smitinandii (J.Dransf.) A.J.Hend. Calamus sordidus J.Dransf. Calamus spanostachys W.J.Baker & J.Dransf. Calamus sparsiflorus (Becc.) W.J.Baker Calamus spectatissimus Furtado Calamus spiculifer J.Dransf. & W.J.Baker Calamus spinosus A.J.Hend., Pitopang & Moh.Iqbal Calamus spinulinervis Becc. Calamus spiralis A.J.Hend., N.K.Ban & N.Q.Dung Calamus suaveolens W.J.Baker & J.Dransf. Calamus subangulatus Miq. Calamus subsolanus A.J.Hend. & Rustiami Calamus sulawesiensis A.J.Hend. Calamus sumatranus (Becc.) A.J.Hend. Calamus superciliatus W.J.Baker & J.Dransf. Calamus susukensis A.J.Hend. & Rustiami Calamus symphysipus Mart. ex Walp. Calamus tadulakoensis A.J.Hend., Moh.Iqbal, Rusydi & Pitopang Calamus tambingensis A.J.Hend., Pitopang & Moh.Iqbal Calamus tapanensis A.J.Hend. Calamus temii T.Evans Calamus tenompokensis Furtado Calamus tenuis Roxb. Calamus tetradactyloides Burret Calamus tetradactylus Hance Calamus thwaitesii Becc. Calamus thysanolepis Hance Calamus timorensis Becc. Calamus trachycoleus Becc. Calamus trigynus A.J.Hend., Pitopang & Moh.Iqbal Calamus tumidus Furtado Calamus unifarius H.Wendl. Calamus unijugus (J.Dransf.) W.J.Baker Calamus ursinus (Becc.) W.J.Baker Calamus usitatus Blanco Calamus validus W.J.Baker Calamus vattayila Renuka Calamus velutinus A.J.Hend. & N.Q.Dung Calamus verticillaris Griff. Calamus vestitus Becc. Calamus vidalianus Becc. Calamus viminalis Willd. Calamus vinaceus A.J.Hend., Pitopang