1. Jacobaea incana
2. Jacobaea maritima
3. Jacobaea vulgaris
4. Jasione montana
5. Jasminum azoricum
6. Jasminum humile
7. Jasminum officinale
8. Jasminum sambac
9. Jatropha curcas
10. Jatropha gossypiifolia
11. Jerusalem artichoke
12. Job's Tears
13. Juglans nigra
14. Juglans regia
15. Jujube
16. Juncus acutus
17. Juncus articulatus
18. Juncus bufonius
19. Juncus conglomeratus
20. Juncus effusus
21. Juncus trifidus
22. Juniperus barbadensis
23. Juniperus bermudiana
24. Juniperus communis
25. Juniperus oxycedrus
26. Juniperus phoenicea
27. Juniperus sabina
28. Juniperus thurifera
29. Juniperus virginiana
30. Justicia adhatoda
31. Justicia americana
32. Justicia procumbens

Juglans nigraouter husk

• Black walnut  (Juglans nigra)

• Also called: eastern black walnut
• Claimed to: be good for killing parasites (such as worms), and treating acne, thyroid disease, colitis, eczema, hemorrhoids, ringworm, sore throats, tonsillitis, skin irritations, wounds, and curing cancer.<wiki/List_of_medicinal_plants#cite_note-44">
• Effects: Unfortunately, there is insufficient research to determine what side effects it has or whether it is effective for anything.<wiki/List_of_medicinal_plants#cite_note-45">