It is that one ... humilis/ciliosa, caroliniensis, depending on what taxonomy is used.
In gardens, many times it is a thug. It spreads by seed only, but the seedlings must be dug, not pulled. Roots don't begin until an inch into the soil. The seed ejection system is pretty neat. And you need to remove seed capsules when they only have a tiny hint of browning if you want to collect or remove the crop. Seeds are ripe then.
