| Plants of Townsville, Australia - Graeme Cocks |
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| Tribulus cistoides | Caltrop, Puncture Vine |
| Zygophyllaceae | Introduced, a native to tropical America. Prostrate herb. The seed pods have strong spines and always have one spine pointing upwards no matter how they fall. |
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All pictures © Copyright Graeme V. Cocks 2004. All rights reserved.