yayeyamsis  Koidzum. = scandens subsp.chinensis (Maxim)McClintock

Yodogawa * (L)

Syn.. Azisai Small lacecaps with mauve fertile florets and white sterile florets with a mauve flush Gardens found in 28 pre 2000 surveys Tuin M.Foster, Ivy Hatch (GB) ? UK  Plant Finder 2012: Not listed.
yayeyamsis  Koidzum. = scandens subsp.chinensis (Maxim)McClintock

Yoe-no-amacha (L)

With clusters of double pale pink or mauve flowers (description ofDerbyplants) It is perhaps closer to H.serrata Gardens found in 28 pre 2000 surveys DA Gardens found in the 10 surveyed in 2010: DA UK  Plant Finder 2012: Not listed.