1) Genus tribulus 2) Rosid dicot genus 
Tribulus echinops Kers Tribulus excrucians Wawra Tribulus longipetalusViv. Tribulus macropterus Boiss. Tribulus terrestris L. Tribulus is a genus of plants found in many warm regions. The best-known member is T. terrestris (puncture vine), a widespread weed and also the source of a dietary supplement. T. terrestris has been said to raise natural ...[gastropod] Tribulus is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails. Species within the genus Tribulus include: ...
[n] - annual or perennial herbs or subshrubs of warm regions
genus Tribulus noun annual or perennial herbs or subshrubs of warm regions