Published Photo

Puncturevine (Tribulus terrestris L.) (Figure 1) is also commonly referred to as tackweed, puncture weed, Mexican sandbur, Texas sandbur, goathead, caltrop, and bullhead. This non-native plant of the southern Europe and Mediterranean region likely showed up in the United States and later the PNW due to seed movement. Since its introduction, human activity and animals have introduced and spread the plant throughout much of the United States and Pacific Northwest.

Photo on page 2 of PNW133.