There's seaside paintbrush and then there's coast paintbrush. Apparently s.p. has more rounded leaves and are hairier. So I am changing my guess on these from c.p. to s.p. Certainly hairy.
PS I've long wanted to admit that I learned that s.p. is thought to be at least partly parasitic despite being in my autotrophs category. I know, who cares. A good bit of the pain in my life probably springs in some way from an overdeveloped sense of the value of truth or something. So, yeah, anyway...