Ditto to regular 'Shigitatsu sawa'. Not Aka, which depending on who you ask is similar to, or the same as, 'Beni shigitatsu sawa'.
The other cultivar that is very similar if not identical to Shigitatsu sawa is P. Reticulatum..I don’t know if it’s a synonym or just similar..Ibgave both and can’t see any difference
I to have both R. I find Reticulatum to be a slightly darker green than my Shigitatsu Sawa. Both are in a shady position. But I agree, Very Very similar. Marketing ploy !!????