Yellow vine
Tribulus micrococcus
Herb with prostrate to shortly ascending branches to more than 1 m long.
Leaves with 4–7 pairs of leaflets; leaflets ± oblong, 6–13 mm long, to 4 mm wide.
Sepals 3–6 mm long. Petals 6–13 mm long, 2–2.5 times as long as sepals. Stigma hemispherical or somewhat elongated; style 1–2.5 times as long as stigma.
Fruit slightly hairy; cocci 3–5 mm long, smooth to wrinkled-muricate dorsally, often with 2 short divergent spines above 0.5–2.5 mm long; seeds 1–3 per coccus.
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