Theory:

As we have discussed, the plants are useful to us in various ways. Some among them are also used as medicines. A few medicinal plants are given below.
Acalypha indica (Kuppaimeni):
  • This plant belongs to the phylum angiosperms and family of Euphorbiaceae.
  • Leaves of this plant can be ground into a paste and used to treat the burns on the skin.
  • The juice derived from this plant's leaves is mixed with lemon juice and used to treat ringworm.
  • It is also used to reduce phlegm and in the treatment of cough, asthma and other breathing problems.
  • It is a herb that is used to eliminate intestinal parasites and worms and to treat constipation.
800px-Acalypha_indica(Kuppaimeni).jpg
Kuppaimeni
Aegle marmelos (Vilvam):
  • This plant belongs to the phylum angiosperms and family of Rutaceae.
  • Aegle marmelos is anti-inflammatory in nature. Hence, its extracts are applied to the exposed area to reduce and cure inflammation.
  • The unripe fruit of this tree is used to treat indigestion.
  • Chronic diarrhoea and dysentery is cured with the help of this plant.
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Vilvam
Solanum trilobatum (Thoodhuvalai):
  • This plant belongs to the phylum angiosperms and the family of Solanaceae.
  • Leaves and fruits of this plant are used to cure cold, cough and acute asthma.
  • It is widely used to treat tuberculosis and bronchial asthma.
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Thoodhuvalai
Phyllanthus amarus (Keezhanelli):
  • This plant belongs to the phylum angiosperms and family Euphorbiaceae.
  • The entire plant is used to treat various liver associated diseases and jaundice.
  • It also gives additional strength to the human liver.
  • It also has various multiple antiseptic, diuretic, antiviral, anti-diabetic properties.
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Keezhanelli
Aloe vera (Sothu Katrazhai):
  • This plant belongs to the phylum angiosperms and the family Liliaceae.
  • Leaves of this plant are used to cure various ailments such as burns, allergic reactions, rheumatoid arthritis, rheumatic fever, and inflammations on the skin.
  • It is also used to cure peptic ulcers, diabetes, piles, and the digestive system's inflammatory conditions.
450px-Aloe_Vera_(कोरफड).jpg
Sothu Katrazhai
Reference:
https://commons.wikimedia.org/wiki/File:Acalypha_indica(Kuppaimeni).JPG
https://commons.wikimedia.org/wiki/File:Bael03_FSPark_Asit.jpg
https://commons.wikimedia.org/wiki/File:Aloe_Vera_(%E0%A4%95%E0%A5%8B%E0%A4%B0%E0%A4%AB%E0%A4%A1).jpg