The big shrub is a bit far away to see clearly.

#2 reminds me of a grape and #3 reminds me of a potato.

Hopefully more knowledgeable folks will chime in soon...

Putting all the photos together means we can't expand them, making it extremely difficult to ID. Can you post a thread for each plant individually?

And use as high a resolution per image as possible. Shrinking and combining = not helpful for quality ID efforts.

1 looks like Coltsfoot, Tussilago farfara.

2 looks like a grape vine.

3 looks like a tree seedling, or something woody. Maybe even Tree of Heaven.

The unnumbered one is too distant to decide.

If blooming now, the ther big distant shrub could be Elderberry (Sambucus canadensis).

The umbels look too small for elder imo. And I don’t discern pinnate leaves. If I saw that across a lawn here I’d say Pyracantha. But I have no idea if that’s even possible in Toronto.

Is it possible that the top photo is the invasive multiflora rose, that someone sheared? #3 kind of resembles Aruncus dioicus.

Agree with Jay that the top photo could be multiflora rose, but a better photo is needed as others have said.

#3 looks like a black walnut seedling.

I am posting a close up picture of the bush with lot of white flowers on it, can anyone now identify it? thanks

No picture. 👀👁🤔 unless it's very white?

Dave, the serrations on #3 look more like Juglans nigra. I was just wondering why in some photos of black walnut the leaves are even pinnate and in other photos the leaves are odd pinnate?

Oh. Thanks floral!

"I was just wondering why in some photos of black walnut the leaves are even pinnate and in other photos the leaves are odd pinnate?" Black walnut's terminal leaflet is often smaller than the lateral leaflets, and sometimes completely absent. Illinois Wildflowers says, "... [leaf] structure is odd-pinnate, although the terminal leaflet is often deformed or missing". Photo below is a black walnut seedling that was planted by squirrels in a patch of Penstemon digitalis in my backyard. IME seedlings usually have a normal terminal leaflet.

Btw, last summer I was in Chicago and noticed that the city had planted some new Juglans nigra as street trees. Someone is going to have a mess on their hands (figuratively and literally) when those trees get big. As the article notes, "Black Walnut is a valuable tree, although a rather messy one. The rotting husks of the nuts can stain sidewalks and driveways a brown-black color that is difficult to remove. Even immature green husks can stain your fingers yellow when they are handled."

Brings out your inner gleaner...

And the squirrels will be happy as he!!.

It's good for the hawks too they know where the squirrels like to hang out.

Arbordave, I searched for any info about Chicago using Juglans nigra as street trees, but found nothing. They are trying to bring more diversity into their plantings using Carya species, Juglans nigra, and other species. I'd prefer seeing walnuts on the roads rather than litter.

They did seem to have a good variety of newer street trees in the neighborhood I visited (a few miles south of Wrigley Field), including a few oak species, hackberries, catalpas, and at least 2 black walnuts.