Didymosperma tremulum (Blanco) G.Nicholson, 1884 species synonym

Arenga tremula subsp. engleri subspecies synonym

Didymosperma porphyrocarpon H.Wendl. & Drude, 1878 species doubtful

Didymosperma humile Lauterb. & K.Schum. species synonym

Didymosperma borneensis Becc., 1889 species doubtful

Arenga manillensis (H.Lodd) H.Wendl. species doubtful

Arenga javanica H.Wendl. species doubtful

Arenga brevipes Becc. species accepted

Saguerus brevipes (Becc.) Kuntze species synonym

Arenga microcarpa Becc. species accepted

Arenga gracilicaulis F.M.Bailey species synonym

Didymosperma microcarpum (Becc.) Warb. ex K.Schum. & Lauterb. species synonym

Arenga retroflorescens H.E.Moore & Meijer species accepted

Arenga listeri Becc. ex Oliv. species doubtful

Arenga wightii Griff. species accepted

Saguerus wightii (Griff.) H.Wendl. & Drude species synonym

Arenga tremula (Blanco) Becc. species accepted

Caryota tremula Blanco species synonym

Didymosperma tremulum (Blanco) H.Wendl. & Drude ex B.D.Jacks. species synonym

Arenga caudata (Lour.) H.E.Moore species accepted

Didymosperma caudatum var. stenophyllum Becc. variety synonym

Didymosperma caudatum var. tonkinense Becc. variety synonym

Didymosperma tonkinense (Becc.) Becc. ex Gagnep. species synonym

Didymosperma caudatum (Lour.) H.Wendl. & Drude ex B.D.Jacks. species synonym

Borassus caudatus Lour. species synonym

Arenga undulatifolia Becc. species accepted

Saguerus undulatifolius (Becc.) Kuntze species synonym

Arenga ambong Becc. species synonym

Arenga ryukyuensis A.J.Hend. species accepted

Arenga longipes Mogea species accepted

Arenga hastata (Becc.) Whitmore species accepted

Didymosperma hastatum Becc. species synonym

Arenga borneensis (Becc.) J.Dransf. species synonym

Didymosperma borneense Becc. species synonym

Caryota humilis Reinw. ex Kunth species synonym

Didymosperma horsfieldii (Blume) H.Wendl. & Drude species synonym

Didymosperma porphyrocarpum (Blume ex Mart.) H.Wendl. & Drude ex Hook.f. species synonym

Didymosperma reinwardtianum (Miq.) H.Wendl. & Drude ex B.D.Jacks. species synonym

Arenga distincta Mogea species accepted

Arenga obtusifolia Mart. species accepted

Saguerus langbak Blume species synonym

Gomutus obtusifolius Blume species synonym

Arenga talamauensis Mogea species accepted

Arenga engleri Becc. species accepted

Arenga tremula var. engleri (Becc.) Hatus. variety synonym

Didymosperma engleri (Becc.) Warb. species synonym

Arenga pinnata (Wurmb) Merr. species accepted

Saguerus rumphii (Corrêa) Roxb. species synonym

Gomutus saccharifer (Labill. ex DC.) Spreng. species synonym

Arenga gamuto Merr. species synonym

Saguerus gamuto Houtt. species synonym

Caryota onusta Blanco species synonym

Saguerus saccharifer (Labill. ex DC.) Blume species synonym

Borassus gomutus Lour. species synonym

Gomutus vulgaris Oken species synonym

Arenga griffithii Seem. ex H.Wendl. species synonym

Arenga saccharifera Labill. ex DC. species synonym

Saguerus pinnatus Wurmb species synonym

Gomutus rumphii Corrêa species synonym

Arenga hookeriana (Becc.) Whitmore species accepted

Didymosperma hookerianum Becc. species synonym

Arenga micrantha C.F.Wei species accepted

Arenga mindorensis Becc. species accepted

Saguerus mindorensis (Becc.) O.F.Cook species synonym

Arenga longicarpa C.F.Wei species accepted

Arenga plicata Mogea species accepted

Arenga australasica (H.Wendl. & Drude) S.T.Blake ex H.E.Moore species accepted

Normanbya australasicus (H.Wendl. & Drude) Baill. species synonym

Saguerus australasicus H.Wendl. & Drude species synonym

Arenga westerhoutii Griff. species accepted

Saguerus westerhoutii (Griff.) H.Wendl. & Drude species synonym

Saguerus pinnatus Kuntze, 1891 species doubtful

Didymosperma caudatum (Lour.) H.Wendl. & Drude species synonym

Arenga ryukyuense Andr.Hend. species accepted

Wallichia tremula (Blanco) Mart. species synonym

Wallichia caudata (Lour.) Mart. species synonym

Blancoa caudata (Lour.) Kuntze species synonym

Blancoa borneensis (Becc.) Kuntze species synonym

Blancoa hastata (Becc.) Kuntze species synonym

Orania porphyrocarpa Blume ex Mart. species synonym

Blancoa horsfieldii (Blume) Kuntze species synonym

Wallichia horsfieldii Blume species synonym

Wallichia reinwardtiana Miq. species synonym

Wallichia porphyrocarpa (Blume ex Mart.) Mart. species synonym

Blancoa porphyrocarpa (Blume ex Mart.) Kuntze species synonym

Blancoa reinwardtiana (Miq.) Kuntze species synonym

Wallichia orania Blume species synonym

Sagus gomutus (Lour.) Perr. species synonym

Arenga microcarpa var. keyensis Becc. variety synonym

Didymosperma novoguineense Warb. ex K.Schum. & Lauterb. species synonym

Didymosperma reinwardtianum H.Wendl. & Drude, 1878 species doubtful

Didymosperma tremulum (Blanco) H.Wendl. & Drude, 1878 species synonym

Saguerus rumphii (Corrêa) Roxb. ex Ainslie species synonym

Orania porphyrocarpa Blume species synonym

Arenga saccharifera Labill., 1801 species synonym

Arenga listeri Becc. species accepted

Saguerus rumphii (Corrêa) Roxb. ex Fleming species synonym

Arenga australasica Martelli, 1935 species doubtful

Arenga engleri Baccari species doubtful

Didymosperma porphyrocarpum (Mart.) H.Wendl. & Drude ex Micheels species synonym

Arenga bonnettii Hook.f. species doubtful

Didymosperma caudatum var. tonkinensis Becc. variety synonym

Didymosperma novoguineense Warb. species homotypic synonym

Caryota humilis Reinw. species homotypic synonym

Didymosperma tonkinense (Becc.) Becc. species homotypic synonym

Arenga porphyrocarpa (Blume ex Mart.) H.E.Moore species accepted

Didymosperma gracilis Hook.f., 1892 species doubtful

Didymosperma microcarpum (Becc.) Warb. species homotypic synonym

Arenga griffithii Seem. species homotypic synonym