Vascular Plants of North Carolina
Account for Puncture-vine - Tribulus terrestris   L.Only member of Tribulus in NC.
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Section 6 » Order Sapindales » Family Zygophyllaceae
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DistributionSo far, known only from New Hanover, Brunswick, and Durham counties. First collected by G. McCarthy in 1885 without location.

Native of southern Europe and northern Africa; in N.A. throughout the U.S. and southern Canada.
AbundanceUncommon in New Hanover County, rare elsewhere.
HabitatRoadsides and medians, lawns of commercial businesses, weed in grass seed (Durham Co.).
PhenologyFlowering and fruiting March-December.
IdentificationOuch! The very sharp, penetrating spines of the fruits may be the first clue of its presence. Stems are green to reddish, sprawling on the ground, with 6-12 small leaflets per leaf. Flowers are tiny, about 5 mm across, yellow. Fruits have thick spines that jab shoes, clothing, skin, paws, tires, etc.
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Other Common Name(s)
State RankSE
Global RankGNR
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US Status
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