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Cymbopogon martini (Roxb.) Wats. - syn.Andropogon martini Roxb. - Poaceae - palmarosa, Palmarosa
„This grass is native to India, but is cultivated elsewhere in the tropics for its oils. Two forms can be distinguished in the field, each with a different oil content, but the habit differences are not evident in herbarium material. The cultivar 'Motia' yields palmerosa oil and 'Sofia' yields ginger-grass oil.“ http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=250071024
„Palmarosa oil, which has a scent similar to roses, is added to soaps and cosmetics.“
http://en.wikipedia.org/wiki/Cymbopogon_martinii
„The essential oil extracted from palmarosa (Cymbopogon martinii) has proven anti-microbial properties against cells of Saccharomyces cerevisiae. Low concentrations of the oil (0.1%) inhibited the growth of S. cerevisiae cells completely. The composition of the sample of palmarosa oil was determined as 65% geraniol and 20% geranyl acetate as confirmed by GC-FTIR. The effect of palmarosa oil in causing K+ leakage from yeast cells was attributed mainly to geraniol. Some leakage of magnesium ions was also observed.“
[Antimicrobial action of palmarosa oil (Cymbopogon martinii) on Saccharomyces cerevisiae., Prashar, A., Hili, P., Veness, R.G., Evans, C.S., Phytochemistry, Vol.63(5), 2003, 569-575]
 geraniol |  geranyl acetate |  linalool |
The primary essential oil (0.3-0.8%) consists mainly of geraniol (78.0-85.7%) and geranyl acetate (2.9-12.0%). Minor components were linalool (2.2-2.4%), (E,Z)-farnesol (0.8-1.9%), sabinene, myrcene, limonene, (Z)-β-ocimene, (E)-β-ocimene, citronellol, geranyl butyrate, geranyl isovalerate, and geranyl hexanoate.
[Chemical profiles of primary and secondary essential oils of palmarosa (Cymbopogon martinii (Roxb.) Wats var. motia Burk.), B.R. Rajeswara Rao, P.N. Kaul, K.V. Syamasundar, S. Ramesh, Industrial Crops and Products 21 (2005) 121-127] http://jonnsaromatherapy.com/pdf/GC-MS_Cymbopogon_martini_2004_01.pdf
„Essential oils extracted from flower petals of palmarosa (Cymbopogon martini), evening primrose (Primula rosea), lavender (Lavandula angustifolia) and tuberose (Polianthus tuberosa) were tested for their antibacterial activities against gram-positive and gram-negative bacteria. Different concentrations of each essential oil ranging from 10-100% were tested. Both gram-positive and gram-negative bacteria were found susceptible to the studied flower essential oils. With increase in concentration of essential oil, increase in zone of inhibition was observed thus dose-dependent response was clear for each essential oil. Essential oil extracted from Cymbopogon martini showed the highest activity against both gram positive and gram negative bacteria among the tested essential oils.“
[Antibacterial activity of essential oils from palmarosa, evening primrose, lavender and tuberose., Lodhia, M.H., Bhatt, K.R., Thaker, V.S., Indian journal of pharmaceutical sciences, Vol.71(2), 2009, 134] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839398/
Cymbopogon martinii (1-7), Flora of China Illustrations vol. 22, fig. 876
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