Skip to main content

Citronella grass (Cymbopogon nardus)

Serai wangi or citronella grass (Cymbopogon nardus) is a plant species in Poaceae, perennial, growing in clumps, up to 2 meters tall, has many fibrous roots, very well-known as a spice in Asian cuisine, herbal teas, citronella oil and pharmaceutical ingredients.

C. nardus has large fibrous roots, short rhizomes and radiates scent. Stems erect or tilted, clustered, bulbous, soft, hollow, green to purplish red and whitish hair. The contents of the stem are tubers and are yellowish white or purplish or reddish white.

Dlium Citronella grass (Cymbopogon nardus)


Ribbon-shaped leaves, thin as paper, curved like grass with a length of up to 1 meter and a width of 1-2 cm, getting to the tip more pointed, green, a large linear bone in the middle, rough surface, hair, sharp margins and smell citrus if squeezed.

Flowers in panicles are red, grow at the tip, five petals which metamorphose into two palea units and a lemma, the crown metamorphoses into two lodic glands to open flowers in the morning. Three to six stamens, open lengthwise, a pair of pistil-shaped heads with a crested-shaped extension.

Flower stalks have a height of up to 2 meters, red covered with protective leaves and usually white. The protective leaves metamorphose into sterile and fertile glums. The fruit is grain shaped, red, elongated, flat ventral dorso and half the seed embryo.

Citronella grass grows wild in the tropics and requires a lot of sun at an altitude of 200-1200 m with an ideal 250-600 m, temperatures 23-30C, rainfall 1000-1500 mm/year with a dry season 4-6 months, distribution of rain 10 months and soil pH 6.0-7.5.





Citronella is widely cultivated for essential oils which contain 30-45% citronellal, geraniol 65-90%, citronellol 11-15%, geranil acetate 3-8%, citronelyl acetate 2-4%, citral, cavikol, eugenol, elemol, cadinol , kadinen, vanilin, limonene and kamfen. The main and most important ingredients are citronellal and geraniol.

Serai wangi is used as a flavor generator in food and drinks, sauces, sweets, meat and fat. Use in the perfume industry mostly consists of citral for the production of α and β ionons which are used as scented ingredients in soaps, detergents, creams, lotions and mosquito repellents.

The leaves are used to kill cancer cells, anti-microbial and anti-bacterial, treat infections of the stomach, intestines, bladder tract, heal wounds, carminative, stomacic, post-partum, fever and antispasmodic. The root is used as a phlegm thinner, mouthwash, diaphoretic and body warmer.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Tribe: Andropogoneae
Genus: Cymbopogon
Species: Cymbopogon nardus

Popular Posts

Mexican ruellia (Ruellia simplex)

Mexican ruellia ( Ruellia simplex ) is a species of plant in the Acanthaceae, an evergreen perennial, 1 meter tall, forming a colony of stalks with lance-shaped leaves. The leaves are narrowly elongated, 6-30 cm long, 1-2 cm wide, a main vein in the middle with many small pinnate veins. The flowers are metallic blue to purple, trumpet-shaped with a corolla 5.1 cm wide, 6 cm long, five-lobed. There is a dwarf variety that is only 30 cm tall. This plant is used to treat itching, coughs and diabetes. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Acanthaceae Subfamily: Acanthoideae Tribe: Ruellieae Subtribe: Ruelliinae Genus: Ruellia Species: Ruellia simplex

Awar awar (Ficus septica)

Awar-awar or Hauli tree or barabar or sirih popar or tobo tobo ( Ficus septica ) is species of plants in Moraceae, trees grow in bushes or in neglected places and sap contained in roots, twigs, leaves and fruit is used to treat poisoning and digestive problems. F. septica is usually 1-5 m high, although in the forest it can be up to 25 m. Round, hollow and bare branches. Roots, twigs, leaves and fruit will emit a yellow sap and sticky if injured. The base of the leaves is large and spiky, arranged alternately or face to face with a stem length of 2.5-5 cm. Large leaf blade, round egg, 9-30x9-16 cm, rounded base and blunt narrow tip, flat-edged, upper side dark green with 6-12 secondary bones pale white. Fruit paired, single or clustered up to 4 items, short-stemmed, at the base has 3 protective leaves, light green or gray green and 1.5 cm in diameter. F. septica is food for 22 animal species including wasps, bats, birds, monkeys and mice as well as seed dispersing vectors. A...

Three new species of Huntsman spider (Pseudopoda Jäger 2000) from Qizimeishan National Nature Reserve

NEWS - A spider survey in Qizimeishan National Nature Reserve in Xuan’en County, southwest Hubei Province, adjacent to the northeastern edge of the Yunnan-Guizhou Plateau, discovered three new species: arc huntsman spider ( Pseudopoda arcuata ♀), Qizimeishan huntsman spider ( Pseudopoda qizimeishanensis ♂ ♀) and Mian Wei huntsman spider ( Pseudopoda weimiani ♂ ♀). The reserve covers a total area of 345.5 km2 and the highest peak is about 2010 meters. It mainly protects the central subtropical mountain evergreen broadleaf forest and subalpine sphagnum swamp wetland area. The reserve is rich in wildlife resources and has been listed as a key biodiversity area in the China Biodiversity Conservation Action Plan. Pseudopoda Jäger 2000 is the largest genus of the Sparassidae Bertkau 1872 with 256 species. Currently, 155 species of Pseudopoda are known in China. This genus is a small to large spider that lives mainly in leaf litter and less frequently in plants. P. arcuata derives its spe...