Calycanthus occidentalis

Calycanthus occidentalis, commonly called spice bush or western sweetshrub, is a species of flowering shrub in the family Calycanthaceae that is native to California and, according to some sources, Washington state. It grows along streams and moist canyons in the foothills of mountains.
Description.
"Calycanthus occidentalis" is a deciduous shrub that can reach hight. Its leaves are opposite, and grow to about long and wide. They are more-or-less ovate with acute tips, a rounded base. The flowers appear from late spring to early fall. The flowers do not have distinctive sepals and petals, but have swirls of dark red to burgundy colored petal-like structures called tepals, long and wide. The flowers open to about wide. The tepals enclose about 10–15 stamens. The flowers are pollinated by beetles of the family Nitidulidae.
Distribution and habitat.
"Calycanthus occidentalis" is native to California and, according to some sources, Washington. It grows along streams and on moist canyon slopes at elevations of .