The leaves don't look right for Rudbeckia californica, the ID plant's are heart-shaped and appear to clasp the stem - it looks rather unusual. The flower does look like a coneflower of some kind.
R. amplexicaulis is native to the southern U.S. but you can buy seeds for it.
Edited to add: Sooby and I are on the same trail.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
President: Orchid Society of Northern Nevada
Webmaster: osnnv.org
Here's the best biggest shot I've got now. I'll take some more if you need. I'm in Southern California & likely planted it with other bulbs and wildflowers.
Name: Leslieray Hurlburt Sacramento California (Zone 9b)
Yes more photos please. I would love to know what you have there. A photo of the entire plant, the base of it. Just to see if the leaves are the same shape at the base. Maybe a more mature flower too. It's very interesting and someone, I'm sure will figure it out.
Hamilton Square Garden, Historic City Cemetery, Sacramento California.
Name: Daisy I Reno, Nv (Zone 6b) Not all who wander are lost
Me too.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
President: Orchid Society of Northern Nevada
Webmaster: osnnv.org