Such a plant will have its parts including leaves, roots, rhizomes, stems, barks,
flowers, fruits, grains or seeds, employed in the control or treatment of a disease condition
and therefore contains chemical components that are medically active.These non-nutrient
plant chemical compounds or bioactive components are often referred to as phytochemicals
(‘phyto-‘ from Greek - phyto meaning ‘plant’) or phytoconstituents and are responsible for
protecting the plant against microbial infections or infestations by pests