I agree that it looks like an ash, though which kind I can't be sure. The bark texture, the leaf color, the opposite branching and the compound leaves all support this. Around here white ash is most common with green ash being often planted, but I don't know what is most likely for you in Vancouver.

Also agree on ash, likely F. oxycarpa (syn, angustifolia) Raywood or Flame - they are heavily planted in this area.

Agree with 'Raywood'. Note the very thin, willow-like leaflets.

Do they have an issue with falling over like in the pic?

Any tree planted directly adjacent to an impermeable surface treatment will have this issue.

The planting and replacement sequence on Seattle streets has been 'Flame' > 'Raywood' > Fraxinus americana, with the latter being used to replace the Narrowleaf Ash cultivars by 2006.

Assuming it is Fraxinus, google Emerald Ash Borer before planting one. At least be aware of its existence and possibility/probability of having to treat it.

Definitely a Narrow-leaf Ash. Main problem in Seattle has been branch breakage.

Pavement looks shiny-new. Roots have been cut recently.

Still plenty of the Raywood/Flame planted as street trees in the greater Seattle area. Very distinctive in their fall coloring :-) EAB is not a presence on the west coast......yet.

A street originally planted with 'Flame' will usually have replacement trees of 'Raywood', and even more recent replacements of White ash cultivars

--Arthur Lee Jacobson, 2006, Trees of Seattle - Second Edition, p. 42

Sorry, but I trust my own eyesight before what I read in books. And Seattle is not the only place in this area that uses F. angustifolia as street trees.

Apparently you're arguing with something that is not being stated. By 2006 a routine had arisen that as the Narrow-leaf Ashes in municipal street plantings failed on their own, the City was replacing them with American Ash.

You were not clear with your cutting and pasting that any replacement trees were the result of a previous tree failure. You made it sound as though it was a selective process undertaken by the City with ALL F. angustifolia. And since I am aware of numerous street plantings of these tree both in Seattle and surrounding areas, I naturally disputed that contention.

btw, not everyone in this area deifies Jacobson as you appear to do.

At any and all times the facts are what they are, regardless of what anyone says or thinks.

This is very interesting. Thank you all for your knowledgeable IDs. To say what a newbie I am, I thought the leaves looked like a podocarpus *embarassed*

I saw this on the Monrovia website while attempting to Lear about this species. Here in Vancouver I can't say I see oodles of them. Now that I say this I probably will....

Fraxinus oxycarpa is a species of Asian origin but little is known about its history.

F. angustifolia is native to Europe and Africa. It was introduced to cultivation in 1800 but it is not known when it was introduced to North America. F. angustifolia subsp. oxycarpa is native to the Mediterranean and Caucasus. It was introduced to Europe (Germany) in 1810. It is not known when it was introduced to North America. The morphological differences between it and F. angustifolia are minor, with there being a later tendency to consider it not meriting separate recognition, list cultivar names under F. angustifolia. As I have done here.

'Raywood' seems to be the only form of the species in cultivation in the west

F. angustifolia 'Dr Pirone', F. angustifolia 'Flame', F. angustifolia 'Raywood' and F. angustifolia 'Scanlon Pyramid' were present in Seattle ca. 2006. F. angustifolia Moraine was still common in California as of 1996.

Wondering if this ash is vulnerable to EAB? Or perhaps it's not known yet....

Edit: Thanks, smivies. It's unfortunate.

It is vulnerable to EAB...not currently an issue on the west coast but would be in MD. In the absence of natural (or chemical) EAB population controls, all of the Ash species are vulnerable (even eastern Asian species).