Wilhelm or William Hillebrand was a German physician. He practiced medicine in several different countries, including for over 20 years in the Hawaiian islands. In 1850, Hillebrand lived at what is now Foster Botanical Garden in Honolulu and gained acknowledgement as a botanist.
Cyperus laxus is a sedge species in the Cyperaceae. It is native to tropical regions of the Western Hemisphere and also to Africa. The species is reportedly naturalized in Assam and the Andaman and Nicobar Islands.
Cyperus anderssonii, commonly known as Andersson's sedge, is a species of sedge that is endemic to the Galapagos Islands.
Cyperus hemisphaericus is a species of sedge that is endemic to eastern parts of Africa.
Cyperus hilgendorfianus is a species of sedge that is endemic to eastern parts of Asia.
Cyperus luerssenii is a species of sedge that is endemic to north eastern parts of Australia.
Cyperus luteus is a species of sedge that is native to central parts of Africa.
Cyperus maculatus is a species of sedge that occurs throughout much of Africa.
Cyperus multispicatus is a species of sedge that is native to Southeast Asia. It is an annual plant.
Cyperus podocarpus is a species of sedge that is native to tropical Africa.
Cyperus praemorsus is a species of sedge that is endemic to Jamaica.
Cyperus renschii is a species of sedge that occurs across a large area of tropical Africa.
Cyperus rohlfsii is a species of sedge that is native to eastern Africa.
Cyperus solidifolius is a species of sedge that is endemic to parts of Madagascar.
Cyperus sphaerolepis is a species of sedge that is found across northern Central America and the southern United States.
Cyperus tenax is a species of sedge that is endemic to parts of eastern and southern Africa.
Cyperus tenuiculmis is a species of sedge that is endemic to tropical parts of central Africa, north eastern Australia and south east Asia.
Cyperus urbani, commonly known as Urban's sedge, is a species of sedge that is endemic to Puerto Rico.
Cyperus entrerianus, commonly known as the woodrush flatsedge, is a species of sedge that is native to southern parts of North America, Central America, and parts of South America.
