Cleistocalyx operculatus
Encyclopedia
Cleistocalyx operculatus, also known as C. nervosum (DC.) Kosterm.
, Eugenia operculata Roxb., 1832, Syzygium nervossum DC., 1828, Syzygium operculatum (Roxb.) Nied., 1893), is a medium sized tree of about 10 meters in height with pale brown bark and dull green leaves.
The tree is native to tropical
Asia
, extending as far south as the Northern Territory
of Australia
.
Flowers cluster as greenish white trichomatous pannicles. The blossoms have 4 petals.
The 7-12 cm diameter fruits are ovoid with a concave tip and a wrinkled texture. The fruits turn purplish upon ripening.
known as "nước vối" with stomachic properties.
André Joseph Guillaume Henri Kostermans
Dr. André Joseph Guillaume Henri 'Doc' Kostermans was a botanist. He was born in Purworejo, Java, Dutch East Indies, and educated at Utrecht University, taking his doctoral degree in 1936 with a paper on Surinamese Lauraceae.He spent most of his professional life studying the plants of...
, Eugenia operculata Roxb., 1832, Syzygium nervossum DC., 1828, Syzygium operculatum (Roxb.) Nied., 1893), is a medium sized tree of about 10 meters in height with pale brown bark and dull green leaves.
The tree is native to tropical
Tropics
The tropics is a region of the Earth surrounding the Equator. It is limited in latitude by the Tropic of Cancer in the northern hemisphere at approximately N and the Tropic of Capricorn in the southern hemisphere at S; these latitudes correspond to the axial tilt of the Earth...
Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
, extending as far south as the Northern Territory
Northern Territory
The Northern Territory is a federal territory of Australia, occupying much of the centre of the mainland continent, as well as the central northern regions...
of Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
.
Description
The leaves of C. operculatus are elliptical, obovate and glaborous, measuring 7-9 cm in length.Flowers cluster as greenish white trichomatous pannicles. The blossoms have 4 petals.
The 7-12 cm diameter fruits are ovoid with a concave tip and a wrinkled texture. The fruits turn purplish upon ripening.
Uses
The leaves and buds of C. operculatus are harvested, dried, and brewed as an herbal tea in VietnamVietnam
Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...
known as "nước vối" with stomachic properties.