Japan (native wild herb; cultivated in Kyoto and throughout Japan; the definitive clear soup garnish herb in Japanese cuisine)
Mitsuba (三つ葉, 'three leaves', Cryptotaenia japonica) is Japan's most important fresh herb — a delicate green with thin stems and trifoliate leaves with a flavour profile combining celery, parsley, and mild anise. It is irreplaceable in suimono (clear soup) as a garnish, in chawanmushi as an aromatic element, and in sashimi as a palate-brightening herb. Unlike most Western herbs which can withstand some cooking, mitsuba's volatile aromatics are extremely heat-sensitive — it must be added at the very last moment or left entirely raw to preserve its characteristic bright, clean fragrance. In suimono, a sprig of mitsuba is placed in the bowl immediately before service; the hot soup releases its aroma but the leaves should remain barely wilted. Mitsuba is available in three forms: nishoku (grown in soil, darkest, most flavourful, slightly bitter); kitte (blanched or lightly shaded, paler green, softer texture); and water mitsuba (grown hydroponically, lightest colour and most delicate flavour). The plant is also used raw in sunomono dressed salads, wrapped around sushi, and as a tying material for small bundles of ingredients in kaiseki presentations. Its cultural significance is as the herb of elegance and restraint in Japanese cooking.
Bright, clean, slightly celery-like with mild anise note; its fragrance is released by warmth rather than cooking; the smell of Japanese clear soup
{"Heat sensitivity: volatile aromatics destroyed by extended heat; add only at the final moment","Three varieties: nishoku (darkest, most flavourful) > kitte > water mitsuba (most delicate)","Suimono essential: a sprig in clear soup is the canonical finishing element","Tying function: the stems are flexible enough to tie small bundles in kaiseki presentations","Raw-only principle in refined applications: cooked mitsuba loses its defining character"}
{"Revive slightly wilted mitsuba: stand in cold water for 15–20 minutes — often recovers fully","Knot the stem into a decorative knot for suimono service — the knot format is classic kaiseki presentation","For sunomono: briefly blanch (5 seconds) then ice-bath; this removes the slight bitterness without losing all aroma","Store cut-end down in a small amount of water in the refrigerator; keeps 3–4 days longer than flat storage"}
{"Adding too early to hot soup — even 30 seconds in boiling liquid destroys the aromatic compounds","Using wilted mitsuba — the herb must be absolutely fresh; limp mitsuba has lost most of its fragrance","Over-using — mitsuba should be a garnish accent, not a primary flavour; 1–2 sprigs per dish","Confusing with Italian chervil — they are different species; mitsuba is more aromatic and less sweet"}
Tsuji Shizuo, Japanese Cooking: A Simple Art