Envoy
''Tribulus terrestris'' (puncture vine) in Hawaii, showing "goathead" fruit, by Forest and Kim Starr (USGS), from [http://www.hear.org/starr/hiplants/images/thumbnails/html/tribulus_terrestris.htm]. {{PD-USGov-Interior-USGS}} http://www.plants.am/w/
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![Envoy''Tribulus terrestris'' (puncture vine) in Hawaii, showing "goathead" fruit, by Forest and Kim Starr (USGS), from [http://www.hear.org/starr/hiplants/images/thumbnails/html/tribulus_terrestris.htm]. {{PD-USGov-Interior-USGS}} http://www.plants.am/w/11:18+326](/w/index.php?title=File:Tribulus_terrestris_fruit.jpg&oldid=10553){kind=link}
