Cycas revoluta (Sotetsu [Japanese ソ テ ツ], sago palm, king sago, sago cycad, Japanese sago palm) ndi mtundu wa masewera olimbitsa thupi m'banja la Cycadaceae, wobadwira kumwera kwa Japan kuphatikizapo Ryukyu Islands.Ndi imodzi mwa mitundu ingapo yomwe imagwiritsidwa ntchito popanga sago, komanso chomera chokongoletsera.Sago cycad imatha kusiyanitsidwa ndi ulusi wandiweyani pa thunthu lake.Sago cycad nthawi zina amaganiziridwa molakwika kuti ndi kanjedza, ngakhale kufanana kokha pakati pa ziwirizi ndikuti zimawoneka zofanana ndipo zonse zimatulutsa mbewu.