Juvenile western gull?
I've also added the plant as a separate observation.
With spiky burs.
Green sea turtles. About a dozen of them in this area. It was a hot afternoon, around 90 degrees, between 1:15pm to 3:15pm. There were two men fishing at the bottom of the steps for the hot water outlets from the power plant (southernmost steps), and they had accidentally caught the turtle shown in my photo... they removed the hook and set the turtle free.
A wild palm seeding, perhaps Phoenix canariensis.
Wild seedlings within 20 m of a flowering adult jacaranda tree.
A wild fan palm seeding, perhaps Washingtonia filifera.
Planted adult trees were nearby (this observation).
There were these well established planted adult trees and many wild seedlings (I've added an observation of a seedling as this separate observation).
Can anyone tell me what this is? I'm seeing it a lot in southern California gardens but haven't figured out the name yet.