description
	
	
	Rhamnus purshiana is an evergreen tree of the Rhamnaceae family growing to
	10 m (32ft) by 6 m (19ft).  It is in flower from May to June, and the seeds
	ripen in October. Leaves are borne in an alternate fashion at the ends of
	the limbs. Leaves are simple and elliptic to oblong in shape. Mature leaves
	can be up to 6" long. They have 10-15 parallel veins and a pointed tip.
	During the growing season the leaves are dark green on their upper surfaces
	and lighter below. Fall foliage can become a very intense yellow, with
	shades of orange and red possible. In May small green-white flowers appear.
	Flowers have sepals, petals, and stamens in clusters. Flowers are classified
	as umbels. Flowers morph to small black berries (drupes). They are obtusely
	3-angled, about the size of a large pea, and contain 3 black, shining seeds.
	Immature berries are red but mature to deep purple to black. 
	
	common names & nomenclature
	
	
	
	The common name Cascara Sagrada means "sacred bark" in Spanish.
	Also known as:
	
chittim wahoo, sacred bark, cascara sagrada, holy bark, persian bark, puchiana bark, christ's thorn, bear wood, california buckthorn, purchiana bark, chittam bark, cascara buckthorn, cascara, bearberry, chittem,  chitticum,  frangula purshiana, rhamnus purshianus