Silk oak (Grevillea robusta)

Pohon perak or silk oak (Grevillea robusta) is a species of plant in the Proteaceae, a large, fast-growing evergreen tree with one main trunk, 5-40 m tall, bark dark gray and wrinkled, grows in tropical mountains, rainforests subtropical, dry and wet rainforests.

G. robusta has fern-like leaves, 10-34 cm long, 9-15 cm wide and is divided between 11-31 major lobes and each lobe is sometimes further divided into 4 minor lobes, each linear to narrow triangular. The tree will lose a lot of leaves before flowering.

Flowers arranged on one side and sometimes branched with a length of 12-15 cm. The carpel of each flower has a stalk 21-28 mm long. Flowers are bare and mostly yellowish orange or reddish. Flowering in September-November and the following fruit are bald follicles.

Silk oak loves full sun and is drought tolerant. Flowers and fruit contain toxic hydrogen cyanide. Wood is widely used for joints outside windows, furniture, cabinets, fences, musical instruments and shade in plantations.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Proteales
Family: Proteaceae
Subfamily: Grevilleoideae
Tribe: Embothrieae
Subtribe: Hakeinae
Genus: Grevillea
Species: Grevillea robusta

Screw tree (Helicteres isora)

Screw tree ( Helicteres isora ) is a species of plant in the Malvaceae family. It is a shrub or small tree, up to 8 meters tall. It has gray bark and alternate leaves, up to 22 cm long and 17 cm wide, oval in shape, with serrated edges and hairs. The flowers are red or white and reach a total length of 5.5 cm. The fruit is green when unripe, brown or gray when dry, twisted, spiral-shaped, and pointed at the tip. The seeds are black or brown, shiny, and diagonal, triangular, or rectangular. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Malvales Family: Malvaceae Subfamily: Helicteroideae Tribe: Helictereae Genus: Helicteres Pluk. ex L. in Sp. Pl.: 963 (1753) Species: Helicteres isora L. in Sp. Pl.: 963 (1753) HETEROTYPIC SYNONYMS Helicteres baruensis var. ovata DC. in Prodr. 1: 476 (1824) Helicteres chrysocalyx Miq. ex Mast. in J.D.Hooker, Fl. Brit. India 1: 365 (1874) Helicteres corylifolia Buch.-Ham. ex Dillwyn in Rev. Hortus Malab....

Breng (Coldenia breng)

Breng ( Coldenia breng ) is a species of plant in the Boraginaceae family. It is a herbaceous plant that grows along the ground, with radial, cylindrical stems, red, multi-branched, alternate, and white-haired. C. breng has alternate leaves along the stem, oval to nearly round, up to 2.5 cm long, up to 1.5 cm wide, and white-haired. This plant grows in floodplains, seasonally inundated riverbanks, and drying rice fields. It thrives in sandy or silty soils and is drought-tolerant. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Boraginales Family: Boraginaceae Subfamily: Cordioideae Genus: Coldenia L. in Sp. Pl.: 125 (1753) Species: Coldenia breng Aryo Bandoro Dlium TheDlium YouTube: https://www.youtube.com/@Dlium

Porang (Amorphophallus muelleri)

Porang or iles-iles ( Amorphophallus muelleri ) is a plant species in Araceae, the petiole is a pseudo stem with a height of 40-180 cm, 1-5 cm in diameter, round, green or purple with irregular white spots, each branching point grows brown bulbil and yellow bulb. A. muelleri has all leaves or stems or stems that are light green to dark green or gray and has greenish-white patches, smooth or smooth surface. The leaves are elliptical in shape with pointed leaf tips, smooth and wavy surface. When flushing has 3, 4-5, 5-6 and finally 6 minor leaves branching with 3 minor petioles. Young leaves have light purple or green edges and will end in yellow and 0.3-0.5 mm wide. The whole canopy is 50-150 cm wide. The stems grow above the tubers with a diameter of 25-50 mm and a height of 75-175 cm. Tubers have a brownish yellow or gray color on the outer surface and brownish yellow on the inside, are slightly oval in shape, fibrous roots, weigh 450-3350 grams, smooth tissue, 4-5 months of dormanc...

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