Lemon grass (Cymbopogon citratus)

Serai or lemon grass (Cymbopogon citratus) is a plant species in Poaceae, a shrub that has large fibrous roots and short rhizomes, pseudo stems that are soft and break easily even though they are stiff, hollow, rooted, clustered and often used as spices and essential oils.

C. citratus has a pseudo stem, 60-200 cm tall, yellowish white as a tuber midrib, has short hair and grows straight above the ground. The stem produces shoots where the root fibers have stolons that spread horizontally below the surface of the soil.

Stems frond and dull greenish white. Single leaf ribbon-shaped, not stemmed, length 50-100 cm, width 2 cm, bright green, pointed tip, bone in the middle of the linear and the rough surface of the upper and lower surface smooth hair.

Squeezed leaves emit a fragrant aroma that is almost like the scent of orange. Flowers contain ears and have no crown. The stems are used as spices to scent food and are processed into essential oils to repel mosquitoes and other insects.

Essential oils from lemon grass are citral, citronellol, beta-pinen, kamfen, sabinen, mirsen, p-felandren, psimen, limonene, cis-osimen, terpinol, citronellal, borneol, terpinen-4-ol, alpha-terpineol, geraniol, farnesol, methyl heptenone, n-desialdehyde, dipentene, methyl heptenone, bornilasetate, geranilformate, terpinyl acetate, sitronelil acetate, geranil acetate and beta-karyophilene oxide.

Citronellal, citronellol and geraniol determine the intensity of fragrant aromas, the value and price of oil. The phytochemical content of lemongrass is tannins, flavonoids, phenols and carbohydrates. The active component has anti-inflammatory, antiseptic, antibacterial, deodorant, expectorant, insecticide and sedative abilities.

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

Dragon tongue (Phyllodium elegans)

Dragon tongue ( Phyllodium elegans ) is a plant species in Fabaceae, shrubs up to 3 meters high, stems erect or sloping and brown, leaves gathered in three strands and are elongated in shape, flowers grow in rows on long stalks. P. elegans has stems erect or sideways, cylindrical, woody, sturdy, slender, branching alternately, zigzagging, brown, the surface has white hair and the old stems have colored spots. The leaves grow in a stalk with three strands. The leaves are elongated, the base is rounded, the tip is slender, a bone in the middle with several lateral veins, the upper surface is brownish green and has white hair. The inflorescences grow in rows on long stalks. The flower buds are folded and wrapped in two circular leaves, flat, green and white-haired. The flower has a yellowish white color and the base is brown. Pod-shaped fruit, white hair, tip has a tail and 1-3 seeds but generally 2 seeds. Dragon tongue grows on the slopes of sandy, calcareous soils, karst, lots of sun...

Sengon gall rust (Uromycladium falcatarium)

Sengon gall rust ( Uromycladium falcatarium ) is a species of fungi in Raveneliaceae, grows on molucca albizia ( Falcataria moluccana ) as the host plant, the symptoms vary widely and sometimes are not obvious, the host stem shows brownish lumps to kill slowly. U. falcatarium infects host shoots at the age of 2-3 weeks which causes the leaves to curl, leg, do not develop normally and fall off easily. At 6 weeks of age, symptoms appear on curved and stiff stems and shoots. At the age of 3 months or more the tumor begins to enlarge. Symptoms begin with tumefaction on the leaves, branches and stems. Subsequent development creates a lot of brownish green bumps which then become small rashes on part of the stem or the whole. Kingdom: Fungi Phylum: Basidiomycota Subphylum: Pucciniomycotina Class: Pucciniomycetes Order: Pucciniales Suborder: Raveneliineae Family: Raveneliaceae Genus: Uromycladium Species: Uromycladium falcatarium

Pink trumpet tree (Tabebuia heterophylla)

Pink trumpet tree ( Tabebuia heterophylla ) is a species of plant in the Bignoniaceae family, growing 6–9 meters tall with a cylindrical trunk and brown bark that is often linearly fissured. The leaves are opposite, compound, with five or fewer minor leaflets. T. heterophylla has striking bright red flowers, tubular, five-lobed, and 5–7.5 cm long. The fruit is a cylindrical pod, up to 20 cm long and up to 1 cm wide. The pod stalk is up to 3 cm long. The pod splits along two lines to release numerous thin, light brown seeds, 0.5–2.5 cm long with two white wings. This species is often used as a street tree and shade tree for residential properties. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Bignoniaceae Genus: Tabebuia Species: Tabebuia heterophylla

Dlium