Water lettuce (Pistia stratiotes)

Apu-apu or water lettuce (Pistia stratiotes) is a species of plant in the Araceae, a perennial monocot with thick and soft leaves that form a rosette, floats on the surface of the water, roots hanging and submerged under floating leaves, grows in watery habitats, rice fields, canals. freshwater and marshes.

P. stratiotes has bright green leaves, 2-15 cm long, parallel venation and wavy edges. The surface is covered in short, white hairs that form a basket-like structure and trap air bubbles for increased buoyancy.

Sponge parenchyma with large intercellular spaces also helps the plant to float. Flowers are dioecious, have no petals and are hidden between the leaves.

Spadix inflorescence with 1 pistil, 1 ovary and 2-8 stamens with 2 stamens. The pistil and carpel are separated by folds in the spathe, where the male flower lies above the female flower.

Berries are green, oval in shape, ovoid seeds are formed after fertilization. Plants undergo asexual reproduction via stolons, but evidence of sexual reproduction has also been observed.

Apu-apu is found in slow-moving rivers, lakes, and ponds. Optimal growth at 22-30C, but can withstand temperature extremes up to 35C. This species also requires slightly acidic water in the pH range of 6.5-7.2.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Alismatales
Family: Araceae
Subfamily: Aroideae
Tribe: Pistieae
Genus: Pistia
Species: Pistia stratiotes

Crested blue ear (Cyanotis cristata)

Crested blue ear ( Cyanotis cristata ) is a species of plant in the Commelinaceae, a fleshy and strong herb, growing as a vine. Leaves 8 cm long, 2.5 cm wide, oblong, rounded or heart-shaped base, blunt or pointed tip, sparsely ciliated at the edge; sheath loose, up to 8 mm long, scaly. C. cristata has flowers 6-7 mm in diameter. Calyx tube 2 mm long, lobes 2-2.5 mm long, hairy. Corolla pale blue to purple, 6 mm long. Stamen filaments bearded, purple. Ovary rounded, hairy at the apex. Capsules 2-3 mm long, ovate. Seeds about 1 mm long, trigonous, 2 large holes on either side. This species grows in grasslands, degraded forest areas, wastelands, waterways and roadsides. C. cristata is found in wet rocky areas, moist soils, grasslands, ravines and riverbanks. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Liliopsida Order: Commelinales Family: Commelinaceae Subfamily: Commelinoideae Tribe: Tradescantieae Genus: Cyanotis Species: Cyanotis cristata

False ashoka (Monoon longifolium)

False ashoka ( Monoon longifolium ) is a plant species in the Annonaceae, a small tree, evergreen, up to more than 20 meters high, symmetrical pyramidal with pendulous branches, hardwood, easy to grow and very adaptive. M. longifolium has long narrow lanceolate leaves with wavy edges, 25 cm long, 6 cm wide, copper brown pigmentation but over time becomes bright green and finally dark green. Pale green flowers resemble delicate stars. The flowering period is usually 2-3 weeks. Fruits in 10-20 pieces, round, up to 2 cm wide, green but turn purple or black when ripe. Trees are used to filter air pollution. Leaves are used for decorative decoration during festivals. Trees are easily pruned into various shapes and maintained in the required size. Flexible, straight and light rods are used in making sailing ship masts. Wood for making pencils, boxes and matches. Seed oil has anti-oxidant, anti-lipooxygenase and antimicrobial activity. Kingdom: Plantae Phylum: Tracheophyta Subphylum: An...

Broad-leaved dock (Rumex obtusifolius)

Broad-leaved dock ( Rumex obtusifolius ) is a species of plant in the Polygonaceae, herbaceous perennial, growing broadly, up to 150 cm tall, large, oval-shaped leaves with a heart-shaped base and rounded tip, large taproot with many branches extending to a depth of 150 cm. R. obtusifolius has leaves up to 30 cm long, 15 cm wide and green. Stems are long, hard, alternate, green or reddish in color and unbranched until just below the inflorescence. A main vein in the middle and green or reddish in color. Flat or wavy surface. The inflorescences consist of large clusters of racemes that contain small, greenish flowers that turn red as they mature. Seeds are reddish brown and dry. Broad-leaved dock grows in fertile soils, grasslands, waste lands, roadsides, ditches, coastlines and riverbanks, forest margins, forest clearing and agricultural land. The leaves are used as a salad to make vegetable broth or cooked like spinach. Dried seeds are used as a spice. Kingdom: Plantae Phylum: Tr...

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