Arrowleaf elephant's ear (Xanthosoma sagittifolium)

Arrowleaf elephant's ear (Xanthosoma sagittifolium) is a plant species in Araceae, 0.4 to 1.5 m high, has no stem and is not woody, waxy leaves, important tuber producers where corm that grows underground is a source of carbohydrates and cultivated since ancient times.

X. sagittifolium has 2-5 leaves with green stems, dark green or purplish stripes, 23-150 cm long and the base is a midrib. Leaves have a size of 6.60x7.53 cm, round eggs, oval with tapered ends, sometimes purplish in color around the stalks, waxy and rounded base.

The flower comes in the cob on the armpit of the leaf. The sheath has a green or yellow or white and fall out. Arrowleaf elephant's ear is grown for tubers as an important source of carbohydrates. Tubers can be processed by steaming, boiling, baking, frying, or processed into flour, porridge, cakes, pasta and fermented to produce pudding.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Alismatales
Family: Araceae
Subfamily: Aroideae
Tribe: Caladieae
Genus: Xanthosoma
Species: Xanthosoma sagittifolium

Sengon gall rust (Uromycladium falcatarium)

Sengon gall rust ( Uromycladium falcatarium ) is a species of fungi in Raveneliaceae, grows on molucca albizia ( Falcataria moluccana ) as the host plant, the symptoms vary widely and sometimes are not obvious, the host stem shows brownish lumps to kill slowly. U. falcatarium infects host shoots at the age of 2-3 weeks which causes the leaves to curl, leg, do not develop normally and fall off easily. At 6 weeks of age, symptoms appear on curved and stiff stems and shoots. At the age of 3 months or more the tumor begins to enlarge. Symptoms begin with tumefaction on the leaves, branches and stems. Subsequent development creates a lot of brownish green bumps which then become small rashes on part of the stem or the whole. Kingdom: Fungi Phylum: Basidiomycota Subphylum: Pucciniomycotina Class: Pucciniomycetes Order: Pucciniales Suborder: Raveneliineae Family: Raveneliaceae Genus: Uromycladium Species: Uromycladium falcatarium

Dragon tongue (Phyllodium elegans)

Dragon tongue ( Phyllodium elegans ) is a plant species in Fabaceae, shrubs up to 3 meters high, stems erect or sloping and brown, leaves gathered in three strands and are elongated in shape, flowers grow in rows on long stalks. P. elegans has stems erect or sideways, cylindrical, woody, sturdy, slender, branching alternately, zigzagging, brown, the surface has white hair and the old stems have colored spots. The leaves grow in a stalk with three strands. The leaves are elongated, the base is rounded, the tip is slender, a bone in the middle with several lateral veins, the upper surface is brownish green and has white hair. The inflorescences grow in rows on long stalks. The flower buds are folded and wrapped in two circular leaves, flat, green and white-haired. The flower has a yellowish white color and the base is brown. Pod-shaped fruit, white hair, tip has a tail and 1-3 seeds but generally 2 seeds. Dragon tongue grows on the slopes of sandy, calcareous soils, karst, lots of sun...

Merapi orchid (Vanda tricolor)

Merapi orchid ( Vanda tricolor ) is an endemic orchid species of Mount Merapi with flowers shaped like spiders, has three dominant colors in one petal are white, brownish red spots, and purple. V. tricolor is considered the most beautiful of the 70 species of orchid found at Merapi. Orchid Merapi is the queen of orchids from the slopes of Mount Merapi. V. tricolor and Dendrobium mutabile are extraordinary orchids where the two plants survive after being hit by the eruption of Mount Merapi in 2010. V. tricolor has a heat shock protein (HSP) that makes it heat resistant. V. tricolor can live in the lowlands up to 1,000 meters above sea level. Cultivation is very easy and only needs patience. The plant's height is around 15 centimeters at the age of two and continues to rise up to several meters. This Merapi orchid has a fragrant aroma, but only at 7.00-9.00 in the morning. Each tree can have dozens of flower stems that generally appear from October to September. Even so,...

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