A great large leaf or Matsumurae type maple with deeply separated lobes and serrated leaves. Introduced in Japan in 1930, Sumini gashi translates to village on the river bank. 'Sumi nagashi' is fast growing and will mature eloquently. Young trees grow vase shaped an upright becoming much more rounded and full as they age. Leaves in spring will emerge sort of maroon but will be much more red than the purple color of varieties like 'Bloodgood'. As the heat of our southern summer starts to rise the foliage will first start to turn more red, then bronze before fading to green by mid-summer. Fall color is bright red.