Yeah the first time I saw one of these it was really bothering me that I didn't know what was going on so now that I've found out (or, at least, found out one common cause of such things) I try to share the information.
I am not a botanist or a citrus cultivation specialist, but of these options the photo above looks to me to be most consistent with a mite-based or similar explanation.
Comments
Biting... LEMON?
Two different fruits on one branch, huh?
This real, naturall y ocurring...?
https://en.wikipedia.org/wiki/Bizzaria
https://en.wikipedia.org/wiki/Buddha%27s_hand
Is anyone aware of such a place on the interwebz?
If so, link, please! 😁