Rudbeckia occidentalis

A rayless Rudbeckia found in the western United States from southern Utah northwards and westwards.

Pseudanthia on the north side of Mount Nebo, Wasatch Range, Utah, 31 Jul 2009.

A split pseudanthium on the north side of Mount Nebo, 31 Jul 2009.

Closer view, the north side of Mount Nebo, 31 Jul 2009.

Plant habit on the north side of Mount Nebo, 31 Jul 2009.

Cauline leaves on the north side of Mount Nebo, 31 Jul 2009.