Came across a tree with unusual leaves and this spike cone at Lincoln Park. Looked in my Trees of Seattle book and over all the Lincoln Park tree walk maps and couldn't find it.
Googled for 'rare leaves' and after scrolling through images for a while, finally found it:
Liriodendron tulipifera (tuliptree)
Curious Bee. Forest Steward. Nature Nerd. Climate Activist Mom.