These are coming up in patches like they were planted in the garden of my new home. My mother says they are weeds. I believe they are a variety similar to come flower or black eyed Susan. Are they weeds?

Looks like a weed to me. Here's an idea - Dig up just one or three and put it in a pot. Weed the rest. Gene

I'd let them bloom before making any decision. It may be a weed (or wild flower), it may be pretty, and you may like it. If so, I'd let it be. Bonus plants! I have a weed of some sort that a friend mistakenly gave me years ago which I've never ID'd but I let it grow here and there as it gets a very pretty little hot pink flower and requires zero care. It reseeds itself and I'm always surprised to find it in new places. I do pull it when it crowds other plants, but otherwise it's just a nice little accent.

Maybe a Goldenrod. They can be very pretty. Whatever it is let it bloom and if you find you don't want whatever it turns out to be you can remove it before it sets seed. I do this whenever I have a seedlings I don't recognize.

Looks like ladybells,(less invasive) although, the fact that there are many areas where this plant is growing may point to Campanula rapunculoides, similar looking, which is very invasive. It is also called Creeping Bellflower, Rampion Bellflower, June Bellflower. If it gets a blue flower spike, you have one of these plants.

Campanula rapunculoides has creeping rootstalks, which is a stem of a plant that sends out roots and shoots as it spreads. Some say that cold winters make it less invasive, but it is a curse to some gardens.

Yup..The foliage does also resemble Lady Bells. Time will tell.

I get mystery plants frequently. I wait till it blooms. Ended up with some amazing petunias in my garden that look exactly like a local weed when very young.

HamiltonSquare said:Maybe a Goldenrod. They can be very pretty. Whatever it is let it bloom and if you find you don't want whatever it turns out to be you can remove it before it sets seed. I do this whenever I have a seedlings I don't recognize.

(about letting it bloom, then decide; I have no idea what it is...)

Yes it's just as easy to pull it out after it flowers if you don't like or want it. If you do it now you'll never know. A "weed" is just a plant in the "wrong" place

I have followed that rule for years - wait til bloom. In the process, I have discovered some lovely plants - even if they were a "weed". But then, many things I plant when I see their bloom, I pull em.