An umbel is a type of indeterminate inflorescence. The inflorescence is a wide open compound umbel of flower clusters on long, slender rays. At the base of the umbel are leaflike green to reddish purple bracts. The inflorescence is a big umbel found at the end of every stem. The cluster is a compound umbel, and each umbel contains several smaller umbels (umbellets). The rachis may be one of several types, including single, composite, umbel, spike or raceme. The bracts under the umbel soon wither. The main umbel is further divided into several secondary umbels known as umbellets or umbellules. The flower heads are arranged in loosely, a cross between umbel and panicle. A cyme can also be so compressed that it looks like an umbel. There are two bracts at the base of the umbel. Its flowers are yellowish green, fragrant, in a terminal or axillary umbel. The flowers form an umbel at the top of a leafless stalk. The plant stem usually bears a solitary flower, but occasionally a cluster of flowers (umbel).