It's Colocasia esculenta. There are literally thousands of varieties, many of them being quite common and planted in house gardens. It's commonly called Taro, and the different varieties are usually named as well, like Colocasia "Mojito", Colocasia "Black Magic", Colocasia "illustris", Colocasia "Tea Cups", Colocasia "Bun Long, etc., etc.

thanks but I knew that, looking for cultivar name if anyone has it, I have about 30 or so different alocasia and colocasia.