It is typically found in shady areas of the lawn as it prefers damp soil conditions. The leaves are typically 1 centimetre in diameter and can be confused with Creeping Mallow, which grows on stolons as well, but the leaves of Creeping Mallow are generally much bigger than that of Hydrocotyle.
MCPA, 2,4-D, mecoprop, ioxynil and dicamba only partially kill well-established hydrocotyle in turf. Triclopyr (Grazon or Scrubcutter) is one of the most effective herbicides against Hydrocotlye. Triclopyr/picloram mixture (Victory Gold, Triumph Gold, Tordon Gold or Conquest) is a better choice as it will control many more species of weeds.
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