Photo: Tribulus terrestris.

Flowering plant. Boardman, OR, US. Wild. 1996-07-17.
Tribulus terrestris L. Engl.: puncture vine, burra gokhroo, burra gookeroo, caltrop, cat's head, devil's-thorn, devil's-weed, goathead. Sven.: tiggarnöt, gokshura. Span.: abrojo de tierra caliente. TCM: bai ji li, ji li. Pharm.: Fructus tribuli. Bot. syn.: Tribulus lanuginosus L.. Pre-Linnaean: Tribulus foliolis sex parium subaequalibus, Tribulus terrestris, Tribulus terrestris ciceris folio fructu aculeato
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Photo: Tribulus terrestris.