Rauwolfia serpentina. Root gives reserpine alkaloid which is used for blood pressure, snake bite and mental disorders.
(afeem) Papaver somniferum. Fruit (capsule) gives morphine, codine. Which is narcotic, sedative and given in relieving pain.
Cinchona officinalis, Calisaya. Bark used for malaria. Coptis teeta of Arunachal Pradesh and Artemesia annua of Uttarakhand also yield antimalarial drugs.
Atropa belladona. Dried leaves and roots are useful. Leaves have atropine and Hyoscymus alkaloid. It is used as Narcotic, diuretic, antispasmodic, Leaves are stimulant of CNS relieving pain.
Datura staramonium. Fruit juice is important for removing dandruff, for bronchital ailments.
Emblica officinalis. Fruits are diuretic laxative for hoemeorage, used in diarrhea, dysentry.
Strycnos nux-vomica. Seed are used as a source for alkaloid strichnum. Used in Paralysis and mental disorder.
Leaves and pods of Cassica angustifolia and C. acutifolia are purgative and anthelmintic.
Seeds husks of Plantago ovala for constipation and gastric ulcers.
Leaves otdigitalis purpurea and D. lanara as cardiac stimulant, relieving dropsy and stimulating renal secretions.
Roots of Aconitum napellus (highly poisonous) are used for cholera and leprosy.
Root of Glycyrrhiza glabra is used for cough and bronchitis.
Flowers of Artemesia cina and A. maritima yield anthelminthetic drug. Artemesin is antimalarial drug obtained from A. annua.
Fruits and seeds of Stryclirous nux-vomica.
(15) Dioscorea (Yam):
Its tubers are edible. The extract diosgenin is starting point of several corticosteroid drugs and contraceptive. Dioscorea is one of the most over-exploited plant.
Leaves of Adhatoda vasica yield an expectorant drug against bronchitis.
Anticancer drug got from Taxus baccata (gymnosperm). Podophyllum hexandrum also contain anticancer ingredients.