Schefflera heptaphylla (L.) Frodin, Bot. J. Linn. Soc. 104: 314 1990 publ. 1991. (Syn: Agalma lutchuense Nakai; Agalma octophyllum (Lour.) Seem.; Ampelopsis heptaphylla (L.) Schult.; Aralia heptaphylla (L.) Willd. ex Spreng.; Aralia octonata Stokes; Aralia octophylla Lour.; Aralia octophylla var. cantonensis Lour.; Heptapleurum octophyllum (Lour.) Kuntze; Heptapleurum octophyllum (Lour.) Benth. ex Hance; Paratropia cantoniensis Hook. & Arn.; Schefflera choganhensis Harms; Schefflera octophylla (Lour.) Harms; Schefflera rubriflora C.J.Tseng & G.Hoo; Sciodaphyllum heptaphyllum (L.) C.L.Hitchc.; Vitis heptaphylla L.);

Japan to Indo-China and Philippines as per WCSP;

China South-Central; China Southeast; Hawaii; Japan; Laos; Myanmar; Nansei-shoto; Philippines; Taiwan; Thailand; Vietnam as per Catalogue of Life;

India, Japan, Thailand, Vietnam as per Flora of China;

SK1584 20 Nov 2018 : 3 posts by 2 authors. Attachments (2) - 1 mb each.

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Should be Schefflera heptaphylla, native to Hong Kong. 

SK1600 25 Nov 2018 : 5 posts by 3 authors. Attachments (7)

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Another Schefflera sp. ?

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There is only one, Schefflera heptaphylla. 

Check for any Schefflera sps, though very doubtful myself.