Mallow is a perennial plant that resembles ground ivy. It spreads from a central root and can be successfully pulled out if there are not too many plants. Usually, there are stands that resemble dichondra. The leaf edges look serrated.
Control: Mallow ivy is killed using Ortho Weed-B-Gon or Bayer Advanced All-in-One Lawn Weed Killer. These chemicals will not damage the lawn grasses when used properly.

As with all broad-leaved weeds, spray in between mowing and do not water for several days. You may need several applications for full control.