A large gall on stem of Quercus agrifolia. It felt hollow.
A smaller, daintier Equisetum than I usually encounter.
Widespread throughout grassland.
Heard many in wooded ravines with Coast Live Oak.
Not sure if the common intorduced species in shady woodlands is M. latifolia or M. sylvatica.
I'm pretty sure these are eggs of a Green Dock Beetle, Gastroidea cyanea.
I found these beetle larvae on Rumex leaves. I saw adult Green Dock Beetles and eggs today in the same area, so I am guessing these are Green Dock Beetle larvae, Gastroidea cyanea. If not it likely some other Chrysomelidae larvae.
I can report that here are at least three species of Hordeums growing in Moore Creek Preserve thanks to Steve Gerow's assistance. Two are introduced species, and one a native. They are, from top to bottom: H. murinum, H. marinum and Hordeum brachyantherum.
It was good to see a fair amount of this grass in Moore Creek Preserve. Looking at patches of it from a distance, the purple really stood out from the surrounding green.
Smaller than the similar Farmer's Barley, Hordeum murinum. In my older books Mediterranean Barley, H. marinum seems to have been H. hystrix.
I'm not sure what species this one is.