Field coreopsis (Coreopsis tinctoria) is a favorite because of the depth of its colors. It is also called plains coreopsis, golden tickseed, and calliopsis. It is endemic to canada, the US, and northern Mexico.
It is delicate and striking.
Plains Coreopsis Poem
Wonderment
Sitting on the window
sill new flowers
ones I'd never seen
Yellow petals flowering
out from within dark
maroon hearts invisibly beating
I stare at the starbursts
in the flowerbox wondering
how they arrived on my sill
Stray seeds perhaps flying
over the Great Plains
winds helping them along
Until gravity finally brought
them down to earth
like fallen stars to rest
Precisely in my window
box sleeping quietly
waiting for the right moment
To open greet me
Invite me over
For a cup of sweetness