Major items
| Organic | Scientific name | Common name | Part | Origin |
| Jacaranda caroba (Vell) DC | ||||
| Jacaranda caucana Pittier | Gualanday / Jacaranda Leafleaf | Extract | S-America | |
| Jacaranda procera (syn Jacaranda caroba (Vell)DC) | ||||
| Jacobina spicigera Schult | Muicle | aerial part | C-America | |
| Jalapa ipomea (syn Ipomoea purga (Wender) Hayne) | Veracruz Jalap | |||
| Jasminum grandiflorum L | Jasmine | flower | N-Africa | |
| Jasminum officinale L | Common Jasmine | |||
| Jateorhiza palmata (Lam) Miers | Colombo | root | E-Africa | |
| Jatropha curcas L | Purgenut | seed | Africa | |
| Jatropha gossypiifolia L | Bellyache bush | leaf, seed | C-America | |
| Jatropha macrantha MüllArg | Huanarpo Macho Extract | bark | S-America | |
| Jeffersonia diphylla (L) Pers | Twin Leaf | root | N-America | |
| Jonesia asoca Roxb (syn Saraca asoca (Roxb) Asokade Wilde) | W JTree | |||
| Juglans cinerea L | Butternut | |||
| Juglans nigra L | Black Walnut | |||
| Juglans olanchana Standl & LOWillima S | Central American walnut | stem bark, fruit | C-America | |
| Juglans regia L | Walnut | nut | MidEast | |
| Juliana adstringens Schlecht | Cuachalalate | bark | C-America | |
| Jumellea arborescens | Ecuador | |||
| Jumellea recta | Ecuador | |||
| Juncus effusus L | Soft Rush | China | ||
| bio | Juniperus communis L | Common Juniper | fruit | SE-Europe |
| Juniperus monosperma (Engelm) Sarg | Cherry Stone Juniper | berry | N-America | |
| bio | Juniperus oxycedrus L | Prickly Juniper | fruit | SE-Europe |
| Juniperus polycarpos K Koch var seravschanica | Afghan Juniper | fruit | Central Asia | |
| Juniperus recurva Buch-Ham ex D Don | Himalayan Juniper | twig, leaf, berry | Indian Sub | |
| Juniperus sabina L | Savin Juniper | |||
| Jussiaea suffruticosa L | ||||
| Justicia adhatoda L | Malabar nut | leaf | S-America |
