I’ve seen them growing in a couple of places around town.
It’s a perennial, with many strong green stalks more than six feet tall, growing from a single plant. On the end of most stems is a round, many petaled white flower three or four inches across.
I can, I guess, go to a nursery and check there but I thought I’d ask here where I can sit on my butt. 
plant
Haven’t used this in a while. 
A close-up of the flower would be helpful.
Looks like some sort of a lily or iris. I think I have these growing in my yard!
But a close-up of the flower would help, as **twickster **said.
Isn’t it working? I’ll try again:
http://www5.snapfish.com/snapfish/slideshow/AlbumID=4853298014/PictureID=221019040014/a=96286645_96286645/otsc=SHR/otsi=SPIClink/COBRAND_NAME=snapfish/
The plant is over 6ft tall.
I can see the plant, but only the whole plant with the photo about 3" x 3". The flowers are barely visible, and no detail can be seen.
I see what you mean. I don’t have a close-up. It looks similar to a daisey, IIRC. White with many petals. they’re quite large, and only one on the end of each stem.
Not really like a daisy. The striations fooled these old eyes.
That’s part of my hand for size comparison.
[quote=“jayjay, post:8, topic:546245”]
matilija poppy, Romneya coulteri.
Definitely. a.k.a. “fried egg bush”
Damn! I’m not much for plant identification, but I knew the moment I saw the close up of the flower. Too bad it already got answered…