| Vegetation Database .. detailed information |
caltrop
Tribulus terrestris |
| Plant Family : | Zygophyllaceae |
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| Plant Form : | herb |
| Growth Habit : | Spreading prostrate annual or biennial herb, with branches up to 60cm long on a woody taproot, stems covered in silky hairs, especially when young. |
| Fruiting Season : | Flowering period. October to March. |
| Description : | Has woody burrs, with 5 segments, each with 2 large spreading spines and 2 small spines, all about 12mm across. Has caused stock deaths, the poison involved hasn't been identified. |
| Distribution : | All mainland states, in most tropical and subtropical regions on the planet. Likes waste places, holding yards and overgrazed degraded pastures. |
| Introduced : | No |
| Seen North Qld : | Yes |
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| Additional info .. | locations seen (4) .. habitats seen (2) .. |
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