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8325853 
Journal Article 
Pharmacognostic investigation of Tribulus bimucronatus (Zygophyllaceae) grown in Saudi Arabia 
Shoeib, NA 
2016 
Pharmainfo Publications 
8 
8 
939-946 
English 
A comprehensive botanical study of all parts of Tribulus bimucronatus was performed to enable the identification and quality control of this biologically active plant. The powder is characterized by the presence of anomocytic stomata, numerous non glandular unicellular trichomes with different sizes, cluster crystals of calcium oxalate, pericyclic fibers and lignified xylem vessels, in addition to sclerides of the fruits which formed from spineless or wingless mericarps. Also, the investigation of the non-polar fraction (n-hexane) was performed using GC/MS for identification of unsaponifiable and saponifiable matters. 93.58 % of unsaponifiable matters was identified, the major compound was found to be phytol (36.91%). While 77.23% of saponifiable matters was identified and pentadecanoic acid-14-methyl, methyl ester (29.93%) was found to constitute the major compound. This is the first record of botanical characters and the GC/MS analysis of Tribulus bimucronatus growing in Saudi Arabia. © 2016, Pharmainfo Publications. All rights reserved. 
Botanical study; GC/MS; Saponifiable matter; Tribulus bimucronatus; Unsaponifiable matter