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(tät
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n. An Asian plant (Brassica rapa subsp. rosularis) of the mustard family, having dark green, spoon-shaped, edible leaves that grow in a dense rosette. Also called spoon mustard.
[Ultimately from a Chinese source such as Cantonese taap3 coi3 (akin to Mandarin tācài) : Cantonese taap3, to fall down, in reference to its low, spreading rosette of leaves (from Middle Chinese thap) + coi3, vegetable; see BOK CHOY.]
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tatsoiBrassica rapa subsp. rosularis