I encountered a girl working in a garden and agreed to find 20 "jaz-boys" for her; some kind of roots or seeds.
I have only found one and lost that when I had to reload a previous game.

Does anyone know of some places where they can be found? I don't remember where I was when I found the one I lost.

Jazbay Graqes....

Taken from UESP:


7 in Vlindrel Hall (Markarth)
4 in Broken Tower Redoubt (The Reach)
4 in Largashbur Longhouse (The Rift)
4 in Niranye's House (Windhelm)
4 in Cellar (The Reach)
4 in Fellglow Keep (Whiterun Hold)
49 around Steamcrag Camp (Eastmarch)
47 around Witchmist Grove (Eastmarch)
35 around Eldergleam Sanctuary (Eastmarch)
33 around The Atronach Stone (Eastmarch)
31 around Bonestrewn Crest (Eastmarch)
26 around Kynesgrove (Eastmarch), especially along the road heading southeast
25 around Mistwatch (Eastmarch)
24 around Broken Limb Camp (Eastmarch)
23 around Cronvangr Cave (Eastmarch)
22 around Riverside Shack (Eastmarch)