Poinsettia (Euphorbia pulcherrima)

Kastuba or poinsettia (Euphorbia pulcherrima) is a plant species in Euphorbiaceae which is famous for its striking leaves. Shrubs or small trees 0.6-4 meters high, forming canopy with a diameter of about 2 meters and having dark green leaves with a length of 7-16 cm.

E. pulcherrima has single elliptical or ovoid leaves with stems mostly 2-4 curves. The tip of the leaf is pointed with the arrangement of pinnate bones and the upper part is bright red or orange, pale green, cream and white according to the variety.

The color of red leaves is created through photoperiodism which requires darkness for 12 hours for at least five consecutive days to change color. At the same time, plants need abundant light during the day for the brightest colors.

Kastuba has simple flowers forming groups in small yellow structures in the middle of each leaf bunch. Single house flowers, yellow and do not fall easily for several weeks, but stamens will fall out.

Female flowers sit between male flowers without petals or crowns and are only surrounded by cyathium. Natural pollination is aided by insects, but fertilization rarely occurs, so almost never have seeds.

Fruit buds grow at the base of cyathium. Poinsettia grows optimally at a temperature of 16-27C. Forming the color of the best bractea at night with temperatures of 16-18C. These plants like the morning sun, but love shade when it starts to get hot.

Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Euphorbiaceae
Genus: Euphorbia
Species: E. pulcherrima

Asian water hyacinth (Pontederia hastata)

Asian water hyacinth ( Pontederia hastata ) is a species of plant in the Pontederiaceae, herbaceous, aquatic, erect, growing in colonies in wet environments with freshwater bodies, lakes, swamps, rivers and agricultural land and abandoned lands. P. hastata is up to 120 cm tall, cylindrical leaf stalks and green in color. Leaves are heart-shaped or arrow-shaped, up to 25 cm long, up to 21 cm wide, green and thick. Inflorescences in panicles and grow on leaf stalks. Fan-shaped flowers, up to 3 cm wide, six-winged, blue in color, white stamens and yellow pollen. Flower stalks up to 3 cm long and white. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Liliopsida Order: Commelinales Family: Pontederiaceae Genus: Pontederia Subgenus: Monochoria Species: Pontederia hastata

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Purwaceng or purwoceng or antanan gunung or Viagra of Java ( Pimpinella pruatjan or Pimpinella priatjan ) are small termas growing horizontally in Apiaceae, growing in villages on Dieng Plateau, Central Java Province, Indonesia, at 1,500 to 2,000 meters above sea level, the roots have medicinal properties for aphrodisiacs and are usually processed in powder form for a mixture of coffee or milk. P. pruatjan grows flat on the ground but does not propagate, small leaves are reddish green for 1-3 cm in diameter. This plant is only found in Java and grows in high mountain areas. A low population where industrial demand is very high results in increasingly scarce. Another place that is likely to become a purwaceng habitat is the Iyang Mountains and the Tengger Mountains in East Java Province. Efforts to multiply and cultivate have a big problem where these plants have difficulty producing seeds. In vitro propagation research through tissue cultivation has been carried out to overcome ...

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