These tiny flowers are less than 1/2 inch wide.
The plants from which the flowers bloom are less than 1 foot tall.
They are in bloom now.

Location: Pacific Northwest.

May I have an ID? Thanks.

I can't see the leaves sufficiently, but the flowers resemble Potentilla.

Is the plant growing wild? Is it shrubby or herbaceous?

http://www.pnwflowers.com/brow...

The bloom looks like Helianthemum but I cannot tell for sure since I cannot see the leaves.

The bloom looks like Dasipnora (Potentilla) to me also, one for comparison:



And, it's native to the Pacific Northwest: http://www.pnwflowers.com/flow...

Hello, me again.

I incorrectly said that the flowers were tiny. It turns out that they're actually 1 inch wide. So not so that small.
But the leaves are tiny.

Here are some pics from today.

Does this change any of your analyses?

It does look like a shrubby cinquefoil, Potentilla fruticosa or Dasipnora as it now appears to be called looks to match. There's several cultivars.

https://www.google.co.uk/searc...

http://gammonlandscapenursery....

http://www.gardentaining.com/P...

Excellent work everyone!

Looking through the links and pics, I believe it is indeed Potentilla Fruticosa Mango Tango or Tangerine.