Puncturevine – Tribulus terrestris

Puncturevine

Tribulus terrestris
L.Zygophyllaceae (Caltrop family)

Life cycle

Prostrate, mat-forming summer annual.

Leaves

Opposite, even pinnately compound, with many small, oblong leaflets.

Stems

Prostrate, covered with stiff hairs and branching in all directions, forming circular mats.

Flowers and fruit

Flowers are small with five yellow petals. Podlike fruit are woody with five triangular burs and sharp spines. Spines are stout enough to puncture tires.

Reproduction

Seeds.

Puncturevine-seedling-300x200
Puncturevine seedling
Puncturevine-leaf-300x200
Puncturevine leaf
Puncturevine-flower-300x200
Puncturevine flower
Puncturevine-fruit-300x200
Puncturevine fruit

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Plant & Pest Diagnostics

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