Pharmacognostical Studies on Stem of  Tribulus terrestris  L.

Mamdouh N. Samy; Mokhtar M. Bishr; Ahmed A. Ahmed; Hanaa M. Sayed; Mohamed S. Kamel

Pharmacognostical Studies on Stem of Tribulus terrestris L.

Mamdouh N. Samy ¹, Mokhtar M. Bishr ², Ahmed A. Ahmed ³, Hanaa M. Sayed ⁴, Mohamed S. Kamel ¹

Affiliations
1 Department of Pharmacognosy, Minia University, Minia 61519, Egypt
2 Research and Development Department, Mepaco Company, Cairo, 11361, Egypt
3 Department of Organic Chemistry, Minia University, Minia 61519, Egypt
4 Department of Pharmacognosy, Assuit University, Assuit 71526, Egypt

The present study was carried out to establish the pharmacognostical characters of stem of Tribulus terrestris L. No reports are available on the pharmacognostical studies of the stem; hence, the present study was carried out to help in identification of this plant for the future references. The microscopical studies of stem revealed the presence of cluster crystals, nonglandular hairs, starch granules, lignified fibers, pitted wood parenchyma, trachides and lignified spiral and pitted xylem vessels.