Tatsoi, scientifically known as Brassica rapa subsp. narinosa, is a leafy green vegetable that is part of the Brassicaceae family, which includes other vegetables like mustard greens, kale, and broccoli. It is also sometimes referred to as "tatsoi mustard" or "spoon mustard" due to its appearance and mild mustard-like flavor.

Tatsoi, scientifically known as Brassica rapa subsp. narinosa, is a leafy green vegetable that is part of the Brassicaceae family, which includes other vegetables like mustard greens, kale, and broccoli. It is also sometimes referred to as "tatsoi mustard" or "spoon mustard" due to its appearance and mild mustard-like flavor.