''Memecylon edule'' is a small evergreen tree native to India especially the
Deccan Plateau
The large Deccan Plateau in southern India is located between the Western Ghats and the Eastern Ghats, and is loosely defined as the peninsular region between these ranges that is south of the Narmada river. To the north, it is bounded by t ...
including most of
Karnataka
Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Kar ...
,
Andhra Pradesh
Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to t ...
and parts of
Tamil Nadu
Tamil Nadu (; , TN) is a state in southern India. It is the tenth largest Indian state by area and the sixth largest by population. Its capital and largest city is Chennai. Tamil Nadu is the home of the Tamil people, whose Tamil languag ...
, Thailand,
Malay Peninsula
The Malay Peninsula ( Malay: ''Semenanjung Tanah Melayu'') is a peninsula in Mainland Southeast Asia. The landmass runs approximately north–south, and at its terminus, it is the southernmost point of the Asian continental mainland. The are ...
,
Singapore
Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...
and Borneo.
It is found in shores with sand or rocky soils.
Common names include kaayam, delek bangas, delek air, nipis kulit ("thin-skinned" in
Malay),
miat, and nemaaru.
Description
Tree
The tree is small and grows between 3–7 metres tall; it has a thin, greyish brown bark. The leaves are ovate 3–7 centimetres long, each of its surface is very thick and leathery that the veins are hard to see.
Flowers and fruit

The tree blooms once or twice per year. These flowers are arranged in a spiky, spherical inflorescence that people compare to the shape of a
coronavirus.
Each blossom is a regular
hermaphrodite
In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes.
Many taxonomic groups of animals (mostly invertebrates) do not have ...
with petals as many as
calyx
Calyx or calyce (plural "calyces"), from the Latin ''calix'' which itself comes from the Ancient Greek ''κάλυξ'' (''kálux'') meaning "husk" or "pod", may refer to:
Biology
* Calyx (anatomy), collective name for several cup-like structures ...
lobes inserted on the mouth of its limb, its stamens are shorter in the alternate and may be seriate. As the flower petals are shed, the sand and rocks below are dusted in mauve.
The fruit is a fleshy capsule or berry with about a centimeter long, it appears green, turning red or pink, then yellow, and later black as it ripens.
Chemistry
The leaves contain
glucosides,
resin
In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on n ...
s,
colouring pigments,
gum
Gum may refer to:
Types of gum
* Adhesive
* Bubble gum
* Chewing gum
* Gum (botany), sap or other resinous material associated with certain species of the plant kingdom
** Gum arabic, made from the sap of ''Acacia senegal'', an Old World tree s ...
s,
starch
Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diets ...
es, and
malic acid
Malic acid is an organic compound with the molecular formula . It is a dicarboxylic acid that is made by all living organisms, contributes to the sour taste of fruits, and is used as a food additive. Malic acid has two stereoisomeric forms ( ...
. They are rich in
aluminum
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It h ...
.
Uses
This tree is valued as an
ornamental Ornamental may refer to:
*Ornamental grass, a type of grass grown as a decoration
*Ornamental iron, mild steel that has been formed into decorative shapes, similar to wrought iron work
*Ornamental plant, a plant that is grown for its ornamental qua ...
and a source of wood for construction. The twigs can be taken and rubbed its ends as a
natural toothbrush.
Yellow colour dye can be extracted from the leaves and flowers, the dye is used to colour the robes of
Buddhist monks.
Leaves and roots are used as a medicine for
dysentery
Dysentery (UK pronunciation: , US: ), historically known as the bloody flux, is a type of gastroenteritis that results in bloody diarrhea. Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. Complication ...
and as an
astringent
An astringent (sometimes called adstringent) is a chemical that shrinks or constricts body tissues. The word derives from the Latin ''adstringere'', which means "to bind fast". Calamine lotion, witch hazel, and yerba mansa, a Californian pl ...
.
References
{{Taxonbar, from=Q6815178
edule
Flora of India (region)
Flora of Malaya
Flora of Borneo
Flora of Sri Lanka