Peruvian primrose-willow (Ludwigia peruviana)

Peruvian primrose-willow (Ludwigia peruviana) is a species of plant in the Onagraceae, shrub or small tree, aquatic, flowering, up to 3.5 meters high, stems cylindrical or square, green and white-haired.

L. peruviana has elongated oval leaves, winged base on short stalks, pointed or rounded ends, bright green, white hair, a vein in the middle with many small pinnate veins.

The flowers are disc-shaped with four oval-shaped fans, bright yellow in color with a white tinge in the middle.

Peruvian primrose-willow forms dense colonies along water bodies, rivers, lakes, rice fields and beaches, then creeps into the water and competes with native vegetation.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Myrtales
Family: Onagraceae
Genus: Ludwigia
Species: Ludwigia peruviana

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

Guinea grass (Panicum maximum)

Guinea grass or buffalo grass or green panic ( Panicum maximum ) is a plant species in Poaceae, annual grasses, growing upright to form clumps, strong, cultivated in all tropical and subtropical regions for very high value as fodder. P. maximum reproduces in very large pols, fibrous roots penetrate into the soil, upright stems, green, 1-1.5 m tall and have smooth cavities for diameters up to 2.5 mm. Propagation is done vegetatively and generatively. Ribbon-shaped leaves with a pointed tip, very many, built in lines, green, 40-105 cm long, 10-30 mm wide, erect, branched, a white linear bone, often covered with a layer of white wax, rough surface by hair short, dense and spread. The flower grows at the end of a long and upright stalk, open with the main axis length to more than 25 cm and the length of the bunches down to 20 cm. Grains have a size of 3x4 mm and oval. Seeds have a length of 2.25-2.50 mm and each 1 kg contains 1.2 - 1.5 million seeds. Guinea grass has two varieties. P...

Purwaceng (Pimpinella pruatjan)

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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