Mustard forums

mustard.growspice.com

List of mustard forums:

• Black Mustard
• Brown Mustard
• Mustard Tree / Toothbrush Tree
• Spider Mustard (Mizuna)
• White Mustard (This is used to make the plain yellow mustard condiment that people put on hotdogs in the USA.)

Supposedly, there are at least 40 species of mustard.

Also see the horseradish, wasabi, and Diplotaxis erucoides forums for plants with similar spicy uses.