Mile-a-minute weed (Persicaria perfoliata)

Mile-a-minute weed (Persicaria perfoliata) is a species of plant in the Polygonaceae, perennial shrub, growing vines with thorny stems, triangular leaves, fruits in dense clusters, growing wild in forests, farmlands and roadsides.

P. perfoliata has a cylindrical, branched, reddish stem with rows of strong, downward-pointing spines. The leaves have long stalks and rows of spines. Green or reddish surface, pointed tip, three main veins with many small pinnate veins and lower surface has rows of spines.

Flower buds, flowers and fruit emerge from within the ocreas. Flowers are small, white and generally inconspicuous. The fruits grow in clusters, are round, segmented, green or yellow or red or blue, each segment containing a black or reddish-black seed.

Mile-a-minute weed prefers warm open areas on riverbanks, parks, open spaces, road shoulders, forest edges to very wet with poor soil structure. The fruit can stay afloat for 7-9 days and spread seeds long distances in river environments. Long vines often hang over waterways.

The tender leaves and shoots can be eaten raw or cooked as a salad green or sweet and can be eaten fresh. The stem is used as a fiber or material in making rope.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Caryophyllales
Family: Polygonaceae
Subfamily: Polygonoideae
Tribe: Persicarieae
Subtribe: Persicariinae
Genus: Persicaria
Species: Persicaria perfoliata

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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