About Holozonia filipes (Hook. & Arn.) Greene
Holozonia is a North American genus of flowering plants in the daisy family, Asteraceae. This genus contains only one known species, Holozonia filipes, which commonly goes by the name whitecrown. This species is endemic to the U.S. state of California. Holozonia filipes is a scraggly, rhizomatous perennial herb. It produces a hairy, glandular, branching stem that ranges from 30 centimeters (1 foot) to 1.5 meters (5 feet) in length. The lower section of the stem is gray-green, while the upper stem branches range in color from green to red. The leaves of this plant are lance-shaped, grow up to 10 centimeters (4 inches) long, and are covered in resin glands. Leaves are arranged oppositely on the lower portion of the stem. Flower heads develop at the tips of stem branches, forming a loose inflorescence. Each flower head has layers of sticky, hairy phyllaries. The individual ray florets have long divided lobes and are white in color. The disc florets are white, and bear large purple anthers.
