Pak Choi Pak Choi Brassica rapa subsp. chinensis AKA: bok choy, pak choi Family: Brassicaceae Pak Choi » Recipes with Pak Choi • Chinese Noodle Soup » Recipes with Pak Choi • Chinese Noodle Soup The Brassicaceae Family a family of flowering plants AKA: the mustard, the crucifers or the cabbage family Kingdom: Plantae Clades: Tracheophytes, Angiosperms, Eudicots, Rosids Order: Brassicales Black Mustard Seed Brown Mustard Seed Horseradish Rapeseed Rucola White Mustard Seed Broccoli Pak Choi Cauliflower Cabbage Savoy Cabbage Chinese Cabbage Swede