Common purslane (Portulaca oleracea). Pleasant-tasting and edible wild portulaca, and a good source of Omega-3 but can be a real pest in the garden. The succulent leaves & stems ensure that the flowering plant can set seed even when pulled from the ground, so if left lying it will come back to haunt you! :-)

that said..

a truly.. take over kens 5 acres WEED ....

i kill my weeds.. i dont eat them ...

its their time of year .... if you let them go to seed... you will regret it ... near on.. for the rest of you life ...

ken

It rather depends on your style of gardening. Do you want a desert of mulch with a few conifers, a couple of random rocks and some straight jacketed trees poking up from the moonscape or do you prefer a slightly more living landscape? If the latter, weed by hand where you don't want a thing and leave it be where it does no harm and encourages biodiversity. Portulaca is a tiny little thing, native, tasty and food for wild life.

Here is a link that might be useful: Are you a passive or aggressive gardener?