Tree Journal

Prunus serotina IDed by flaking bark with lenticels on a thick branch and the rough bark of the trunk, cherry-like buds, and technically acrid smell (though I didn’t want to break off a twig so I’m just assuming it smelled bad)

Crataegus crus-galli IDed by distinctive shaggy gray bark with orange inner bark and ~8 cm slim thorns.

Ulmus americana IDed by short, brown elm-like buds

Salix matsudana IDed in the rain! by the channeled bark and squiggly branches. Odd to find it planted in the middle of a concrete sidewalk, given that the roots of corkscrew willows will probably destroy the concrete if the tree gets too big. Whoever planted this tree probably didn’t consider that, or I could have just misidentified it…

Ulmus parvifolia IDed by distinct orange mottled bark and elm-like buds

Gleditsia triacanthos IDed by distinctly plated bark with lenticels & knobbly branches.

Populus tomentosa IDed by process of elimination, so probably not actually correct. It is definitely some kind of cottonwood/poplar/aspen because of the bark and the fact that the lowest scale is inline with the leaf scar. The buds are very much like a balsam poplar, seemingly too large and with too few scales to be a quaking aspen. The bark is quite like a quaking aspen, though.

Gleditsia triacanthos IDed by the literally perfect typical branch of a honey locust

Ginkgo biloba IDed by bullet-shaped buds and scraggly lined bark

Ulmus parvifolia IDed by elm-like buds that are pretty short, plated outer bark with lenticels, and fiberous inner bark

I also found a photo of a siberian elm online with a very similar bark… But the site said that Chinese Elm is Siberian Elm and that is certainly not the case.