Page 144 - Pharmacognosy 2 PG303
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Pharmacognosy-2 (PG303)                              Level 2                  Clinical Pharmacy-Pharm D



       Medicinal Herbs


 Herb   Lobelia   Mentha   Thymus   Hyoscyamus               Cannabis
 (Indian tobacco)   (peppermint)   (Egyptian henbane)   (Indian hemp, Hashish)
 Origin    (Asthma weed, American   Dried leaves and   Dried leaves and flowering tops  Dried leaves and flowering   Dried flowering and fruiting
 Lobelia)   flowering tops of Mentha   of Thymus vulgaris Linne.   tops of Hyoscyamus muticus   tops of pistillate plants of
 Dried aerial parts of Lobelia   piperata family Labiatae   family: Labiatae (Lamiaceae)   L. Family: Solanaceae.    Cannabis sativa Linne. Family:
 inflata L. family   (Lamiaceae).                   Cannabinaceae.
 Companulaceae, Collected
 towards the end of the
 flowering stage.
 Macroscopical   Angular, winged (2-5) and   Quadrangular   Quadrangular.   Cylindrical, hollow   Cylindrical, numerous bracts.
 character   very hairy.
 1.Stem













 Oder      Aromatic with cold   Agreable aromatic   Narcotic odor   Narcotic odor
 Taste   sensation   Pungent aromatic   Better saline taste   with very slight taste
 2.Leaves    Irregular, Crenate- dentate   Opposite decussate,   Opposite decussate, Entire   Rhomboidal Entire margin.   Types of Bracts:
 margin   serrated margin.   margin.                1.  Simple and sessile: entire
  With scattered stiff hairs                           margin.
 especially along the margin.                       2.  Palmately compound: entire
                                                       margin.











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