What is this invasive grass??

This grass started showing up in our gardens and in our lawn about two years ago, I suspected it was a ride along in a bag of mulch we got bc it started in the flower garden, but it's now trying to take hold in our lawn also. The grass is a much lighter green than our sod so it's easy to pick out, and the stalks, if you will, are thicker than the lawn, shallow roots, easy to pull out, but it's maddening. It grows faster than the lawn also so a day after cutting these pale green grasses are taller than the actual lawn. Can you please identify this grass and if possible tell me how to get rid of it once and for all? Thank you.

I think you are actually dealing with Nut Sedge, not a true grass.
They are tricky to pull out because every bit of root you leave in the soil can and will regrow, and they break off very easily.

Thank you thank you! That's it. Ugh it's nasty to control.

You can use chemical killers IF you dont mind these, I personally hate the use BUT, sometimes it's a last resort so I would go by a jel type of weedkiller, it is for SPOT KILLER USE, so you need a pair of gloves, either a cotton wool swab, and dab the killer onto the swab, place top back on killer carton / container, then hold the weed flat on one hand and run the swab up the weed, make sure this goes NOWHERE NEAR the ordinary lawn grass or it will kill whatever it touches, WEDD KILLERS cant identify a weed from your healthy plants, so they kill whatever they touch, it might be good to make little collars to place around the weed and this prevents any shakey hands or wind blowing the lawn grass onto the treated weeds.
I have a friend who uses small plastic zip top bags from the grosery store used for sandwages, she
places the open bag around the weed, tips or branches or whatever she wants killed without damaging other neighbouring plants, paints the killer onto the inside of the bags, zips the bag almost closed and sets a small stone onto the bag to prevent movement, after about a week, the weed is almost yellow, leave in place till the weed has died.
These killers take the product DOWN to the roots and kills the weed so you need to be patient as on some weeds, it can take several weaks and with some tougher plants, it can require several swabs of killer to get the weed to become weaker, maybe needing several seasons to have repeat goes at killing.

Hope this gives ideas to concider.
Best regards.
WeeNel.

Non-native grasses are classified as invasive if they have the following three attributes:

The grass must have a pathway to be delivered to a new location, e.g. boat, shoe, animal, vehicle, feed, contaminated seed, etc.
It is able to tolerate its new environment long enough to establish and reproduce.
It is able to co-exist with native plants. Invasive grasses can out compete native plants species by manipulating environmental conditions through either chemicals or other physiological factors.

Any invasive, not just grasses, can be thought of in those same terms. I do not know how Nut Sedge originally spread, but it is a very common weed in lawns. Lawn grasses themselves are almost never native to where they are growing, either.

Interesting, that would explain why I always get a couple shoots of this grass growing in the same area. They must have some roots down there that I don't know about.

I get it in my mulch. It's getting the best of me and my gardens--in my iris-everywhere. It spreads by seeds and by by roots.

I haven't heard a a gel form of weed killer. I will try to find it.