Under a tree at the University of California, Santa Barbara

I walked around the campus and came upon this interesting tree. Likely Corymbia citriodora.

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Corymbia citriodora (Wikipedia) Corymbia citriodora, commonly known as lemon-scented gum and other common names, is a species of tall tree that is endemic to north-eastern Australia. It has smooth white to pink bark, narrow lance-shaped to curved adult leaves, flower buds in groups of three, white flowers and urn-shaped or barrel-shaped fruit.
Lemon-Scented Gum – Santa Barbara Beautiful Tree of the Month – April 2020 (sbbeautiful.org) Perhaps the first thing you notice about a Lemon-Scented Gum tree is its unique bark – pinkish-white and perfectly smooth. A real eye-catcher.