Merakan (Themeda arguens)

Rumput merak or Christmas grass or merakan (Themeda arguens) is a species of plant in Poaceae, annual grass, growing upright with a stem height of 20-120 cm, a single leaf shaped like a ribbon, flat and elongated with a pointed tip, 5-30 cm long, 4-7 mm wide and green.

T. arguens has white fibrous roots. Stems upright or somewhat lying, cylindrical, slippery, small, long, segmented, dense reed, reddish purple or sometimes yellowish or green and brown when dry.

Compound flowers are arranged in clusters at the ends or in the armpits, grains are protected by a lancet-shaped sheath, 2.5-3.5 cm long and purplish green. Androgynous flowers have 4 ears, 3 stamens and 2 pistil heads.

Elliptical fruit, almost round piston, solid hair, 8-10 mm, green and deciduous with a stalk. Seeds are round, small and black. This species has two varieties, Themeda arguens var. arguens and Themeda arguens var. balinensis.

Merakan feels fertile in open places, lots of sun and dry. Group in savanna forests, teak forests, secondary forests, road sides and dykes. Grows on various types of soil including clay and lime at altitudes up to 1,200 m.

T. arguens sometimes becomes weeds in fields and gardens. Often used for animal feed, treating back pain, roots for fertilizing hair or tonics and cleaning the blood.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Tribe: Andropogoneae
Genus: Themeda
Species: Themeda arguens
Varieties: Themeda arguens var. arguens, Themeda arguens var. balinensis

Comments

Indian rosewood (Dalbergia latifolia)

Sonokeling or Java palisandre or Indian rosewood ( Dalbergia latifolia ) is a species of plant in the Fabaceae, a large tree producing hardwood, medium weight and high quality, rounded leaves, thin and broad pods, highly adaptive, grows in dry and rocky landscapes with lots of sunlight. D. latifolia has medium to large size, cylindrical stems, up to 40 m high with a ring of up to 2 m, the bark is brownish gray and slightly cracked longitudinally. The crown is dense, dome-shaped and sheds leaves. The leaves are compound and pinnate oddly with 5-7 strands that have different sizes and appear alternately on the shaft. The leaves are round or elongated in width or heart, the upper surface is green and the surface is pale green. The flowers are small, 0.5-1 cm long and clustered in panicles. The pods are green to brown when ripe and are elongated lanceolate, pointed at the base and tip. The pods have 1-4 seeds which are soft and brownish. Indian rosewood grows at elevations below 600 m,

Sengiran (Pittosporum moluccanum)

Sengiran ( Pittosporum moluccanum ) is a species of plant in the Pittosporaceae, small tree, up to 7 meters high, green leaves, elliptical to narrow elliptical, up to 17 cm long, up to 6 cm wide, sharp tip, narrow base and 1-1.5 cm long stalk. P. moluccanum has an inflorescence which is a collection of flowers. The fruit is red, capsule-shaped, elongated oval, sharp tip, 2 broken valves containing small and red seeds. This species grows in forests, plantations, roadsides, open or shaded areas. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Apiales Family: Pittosporaceae Genus: Pittosporum Species: Pittosporum moluccanum

Evolution theory goes beyond

OPINION - As a Wallacean and Darwinian, I have always viewed life from the perspective of evolutionism. I see the world of plants and animals always using evolutionary theories. How a species develops functional organs, forms morphology, adapts to ecosystems and so on as a natural laws. This perspective ultimately forms my framework for thinking about various things, including the way I see myself, everyday problems and the way I think about big things such as economics, geopolitics, war and so on using an evolutionary perspective. Alfred Russel Wallace, Charles Darwin and Jean-Baptiste Lamarck are three great figures who really inspired me. They are well known as pioneers of evolutionary theories. They start from small things in the sub-subject of biology, although they also discuss geology and so on. Wallace focused on species adaptation and Darwin on sexual selection. Both developed evolutionary thinking using observational methods. Lamarck focused on structural morphology using l

Dlium

Search This Blog