Identify my citrus

Question

Bought a house in Northern California with a very prolific citrus tree. Fruit looks like pomelo on inside but is perfectly round. How do I tell the difference between pomelo and grapefruit trees?

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Answer 1

I believe this is a pomelo. Pomelos have a unique leaf shape which can be seen here:
https://aggie-horticulture.tamu.edu/syllabi/422/leaves/PumelloL.jpg

It looks like your tree has these distinctive leaves.
There are several hybrids between pomelo and grapefruit, so this could also be one of those. Unless you're able to get a genetic analysis done, you might not be able to tell specifically if it is one of these.