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

Java milkwort (Polygala javana)

Java milkwort ( Polygala javana ) is a species of plant in the Polygalaceae family. It has erect, woody, branched stems with brown to black stems and white hairs or powdery hairs. The leaves are opposite and alternate. The leaves are oval, up to 30 mm long and up to 9 mm wide, and green. The inflorescences are arranged in panicles, arranged in rows and radially. The flowers are butterfly-shaped, yellow, green, and purple, with white hairs, up to 8 mm wide. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Fabales Family: Polygalaceae Tribe: Polygaleae Genus: Polygala Tourn. ex L. in Sp. Pl.: 701 (1753) Species: Polygala javana DC. in Prodr. 1: 327 (1824) HETEROTYPIC SYNONYMS Polygala ceylanica B.Heyne ex Wall. in Numer. List: n.° 4183 (1831) Polygala javana var. angustifolia Thwaites in Enum. Pl. Zeyl.: 22 (1864) Polygala raoi R.N.Banerjee & L.K.Banerjee in Proc. Indian Acad. Sci., B 82: 218 (1975) PUBLICATIONS Aung, Y.L., Aung, M.H....

Black jumping spider (Hyllus diardi)

Black jumping spider ( Hyllus diardi ) is an animal species in the Salticidae, black and white spiders, long hair, round head, elongated belly, relatively small, arboreal, perched on leaves in bushes and low trees in forests and agricultural lands. H. diardi has black and white color, shiny surface and white hair all over the body. The head is round, shiny black with a linear white line in the middle. Black eyes on the front of the head. The stomach has an elongated, jointed, black cylindrical shape with black plots at the top of each segment. The legs are long, segmented, shiny black or brownish in color and hairy. Black jumping spiders live arboreal, perch on leaf surfaces, low bushes, trees in forests, agricultural land, roadsides and shade. Very sensitive to human presence and will hide behind leaves to avoid sight. Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Suborder: Araneomorphae Infraorder: Entelegynae Superfamily: Salticoi...

Cat's whiskers (Orthosiphon aristatus)

Remujung atau kumis kucing atau cat's whiskers ( Orthosiphon aristatus ) is a species of plant in the Lamiaceae, an erect herb, the lower part is rooted at the joints, 2 meters high, the stem has four corners and is somewhat grooved with short hair or bald, has joints where branches grow to the left and right and is dark purple. O. aristatus has round or oval, lanceolate, round-ovate or rhombic leaves starting from the base, 1-10 cm long, 1-5 cm wide, 4-29 cm long stalks and a main vein in the middle, leaf stalk length 7-29 cm. Glandular flower petals, veins and bases are short and sparsely hairy, while the uppermost part is bald. The terminal crown is a bunch that comes out of the end of the branch with a length of 7-29 cm. Length 13-27mm, covered with short purple hairs on the top and then turning white, tube length 10-18 mm, lip length 4.5-10mm, blunt flower strands, round. Stamens are longer than flower tubes and exceed the upper lip of the flower. Dark brown fruit, 1.75-...

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