jmdict 2160230 Active (id#2228972)
本わさび； 本ワサビ； 本山葵
【 ほんわさび 】
  1. [n]
    • real wasabi (as opposed to Western horseradish)
    Cross references:
    • ⇒ see: 1302710 【わさび】 1. wasabi (Wasabia japonica); Japanese horseradish
    • ⇒ see: 2160220 西洋わさび 1. horseradish (Armoracia rusticana)
    • ⇐ see: 2857837 山わさび【やまわさび】 1. horseradish (Armoracia rusticana)
History:
    • A 2023-04-18 21:20:52 Robin Scott (id#2228972)
    • Diff
      @@ -18 +17,0 @@
-<xref type="see" seq="1302710">わさび</xref>
@@ -21,2 +20 @@
-<xref type="see" seq="2160220">西洋わさび</xref>
-<gloss>real wasabi (in contrast to Western horseradish)</gloss>
+<gloss>real wasabi (as opposed to Western horseradish)</gloss>
    • A 2023-04-17 12:17:47 Jim Breen (id#2228821)
    • Comments
      Trimming a lot. Don't need all the xrefs.
    • Refs
      KOD
    • Diff
      @@ -18,6 +18,3 @@
-<xref type="see" seq="1302710">山葵・わさび</xref>
-<xref type="see" seq="1302710">山葵・わさび</xref>
-<xref type="see" seq="2160220">西洋わさび・せいようわさび</xref>
-<xref type="see" seq="2857837">山わさび・やまわさび</xref>
-<s_inf>esp. used in marketing to distinguish from western horseradish</s_inf>
-<gloss>(true) wasabi (Wasabia japonica)</gloss>
+<xref type="see" seq="1302710">わさび</xref>
+<xref type="see" seq="2160220">西洋わさび</xref>
+<gloss>real wasabi (in contrast to Western horseradish)</gloss>
    • A* 2023-04-17 11:42:07 Brian Krznarich (id#2228815)
    • Comments
      The term "本山葵" does not appear in the Japanese wikipedia page for "山葵". This is not in and of itself, as I understand it, a scientific identifier for a particular species of plant.  Instead, it is more like "true wasabi" (vs. western wasabi).

If your product contains at least 50% 山葵, then it can be marketed as 本わさび使用、if less, than 50%, then 本わさび入り.  (The wasabi in my fridge says 使用, must be the good stuff... 1st ingredient is 本わさび, 3rd ingredient is 西洋わさび related)

According to the article, does *not* have to actually be produced in Japan, technically, as long as it is the correct species of wasabi.

I know we're not fans of lots of xrefs.
For marketing purposes, 本わさび　and 山わさび align directly (google/product search will return similar products)
On an ingredient list,  本わさび and 西洋わさび align
and, of course, 本わさび *is* just 山葵 (to the extent that わさび is used with its originally meaning, and not colloquially as "whatever I'm served to put on my sushi")
    • Refs
      本わさび	33278	79.4%
本ワサビ	4953	11.8%
本山葵	3683	8.8%

https://www.chunichi.co.jp/article/68052
本わさびの使用量が５０％以上なら「本わさび使用」、５０％未満なら「本わさび入り」と表示する決まりです。

https://en.wiktionary.org/wiki/山葵
Called 本山葵 (hon wasabi) when needed to distinguish it from the derived terms.
    • Diff
      @@ -5,0 +6,3 @@
+</k_ele>
+<k_ele>
+<keb>本ワサビ</keb>
@@ -15,2 +18,7 @@
-<xref type="see" seq="2160220">西洋わさび</xref>
-<gloss>wasabi (Wasabia japonica)</gloss>
+<xref type="see" seq="1302710">山葵・わさび</xref>
+<xref type="see" seq="1302710">山葵・わさび</xref>
+<xref type="see" seq="1302710">山葵・わさび</xref>
+<xref type="see" seq="2160220">西洋わさび・せいようわさび</xref>
+<xref type="see" seq="2857837">山わさび・やまわさび</xref>
+<s_inf>esp. used in marketing to distinguish from western horseradish</s_inf>
+<gloss>(true) wasabi (Wasabia japonica)</gloss>
    • A 2007-05-06 00:00:00
    • Comments
      Entry created
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