Teri,
My guess is a "bunch" refers to the leaves that are attached to the daikon root top that are joined at that root top (when prepaing fresh daikon roots in the backyard at the East West Center For Macrobiotics in Los Angeles [Melrose at North Orange Grove] Bruce would slice the root a fraction of an inch from where the leaves join on each daikon and hang that "bunch" of daikon leaves straddling on a clothesline about 6 feet off the ground in a shady part of the yard, and would fill that clothes line with up to 90 bunches of daikon leaves to dry and then when the leaves turnd brown and brittle would grab several of those dried bunches and fill small quart sized paper bags with them that people came into Grain Country to buy.
So I would say that a bunch is that small group of dried leaves that attaches to one daikon root.
So when following the recipe of
www.goodhealthinfo.net/mdr/home_remedies.htm Daikon Leaves try the recipe and see if that is strong enough.
Of course if you don't have the dried daikon leaves but wish to use them instead of arame or comfrey, you can buy them here
www.simply-natural.biz/Hiba.php Yuuki "Hiba" Dried Daikon Leaves 1 oz.
Does that help?
Cool Dude