Skip to main content

Common red stem fig (Ficus variegata)

Nyawai or common red stem fig (Ficus variegata) is a tree species in Moraceae, height up to 30-40 m and diameter 85-100 cm, buttresses up to 2 m and smooth surface, unisexual flowers, fruit buds appear directly on the stem and grow solitary in the tropics.

F. variegata has a single leaf, scattered, ovoid, heart-shaped base and pointed tip. Thin leaves with a size of 9-25x4-12 cm. Secondary veins for 4-8 pairs with base arranged like fingers and stem length of 2.5-18 cm.

Dlium Common red stem fig (Ficus variegata)

Female flowers consist of an elongated and white stylus, ovaries, red colored calyx and pedicles. A flower bud becomes a ripe fruit for around 2-3 months. This tree starts to bear fruit at a young age.

Common red stem fig species require full sunlight, often found in burned natural forests and scattered along with other pioneer plants including jabon (Anthocephalus cadamba), mahang (Macaranga spp.), benuang bini (Octomeles sumatrana) and nuklea (Nauclea sp.) .

Nyawai grows at an altitude of 0-1000 m, rainfall 1700-3900 mm per year with an average of 148-266 mm per month and 9-14 days/month, temperature 21-32C and humidity 70-84%, pH 4.5 -5.2 on the soil of the red-yellow podsolic group with flat to moderate undulating topography.

The flowering and fruiting period is from May to June. Mature fruit has a variety of colors including dark green, reddish green to blackish red. Measuring around 34 mm and round, clustered and attached to the trunk and branches.







A tree can be found immature fruit and ripe fruit at once. Ripe fruit has a sweet taste and is liked by apes, birds, anteaters, porcupines and wild boars. The fruit contains very small and intermediate seeds with an amount of 3-5 million grains/kg.

Wood is brightly colored, whitish yellow and has a good complexion. The heating value is 4.225 cal/gram, the specific gravity is 0.20-0.43 and is classified in the strength class V and durability class V-III. It does not require special treatment to produce a good 1.5 mm veneer with a 910 peel angle.

Wood contains 74.42% holocellulose, 27.97% lignin, 19.75% pentosan, 2.84% ash and 0.439% silica. The wood will dry out within 11 days with a 50% moisture content to be reduced to 13% at a temperature of 20-33 C and humidity 62-85%.

Wood is used as plywood for face veneer, very good for temporary building construction, molding, interior, drawers, boxes for fruit and raw materials for pulp and paper. Leaves for deer feed. Fast growing trees are often used for reforestation and restoring degraded land.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Rosales
Family: Moraceae
Genus: Ficus
Species: Ficus variegata
Varieties: Ficus variegata var. chlorocarpa, Ficus variegata var. garciae

Comments

Popular posts from this blog

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