hydrodistilled essential oil of peperomia pellucida (l.) kunth, collected from the foothills of uttarakhand was analyzed using gas chromatography-flame ionization detection (gc-fid) and gc-mass spectrometry (gc-ms). a total of fifty constituents, representing 94.3-97.9% of the total oil composition, were identified. major constituents of the oil of whole herb were carotol (26.6-32.0%), dill apiole (25.1-30.2%), pygmaein (5.5-10.5%), (e)-caryophyllene (5.6-8.3%), germacrene d (3.1-4.7%), -elemene (3.0-4.2%), camphor (< 0.05-2.8%), daucene (0.8-2.7%), apiole (1.5-2.5%), -bisabolene (0.2-2.2%) and bicyclogermacrene (1.6-2.1%). however, the root oil contained higher amount of apioles (dill apiole 63.9% and apiole 9.2%) compared with the aerial parts (dill apiole 20.7% and apiole 1.1%) of p. pellucida.