Skip to main content

Kassod tree (Senna siamea)

Johar or kassod tree (Senna siamea) is a plant species in Fabaceae, a 2-30 m tall tree with straight and short trunks, the shadows rarely exceed 50 cm, brownish-gray bark on young branches, branching widens to form a dense canopy and rounded.

S. siamea has even pinnate leaves, 10-35 cm long with round stems, 1.5-3.5 cm long with shallow grooves in the middle and shaft without glands. Leaves support tapered small, 1 mm and easily fall out.

Dlium Kassod tree (Senna siamea)

Minor leaves have 4-16 pairs, somewhat warm, oval to round eggs, base and tip rounded or dull, bald, shiny upper surface and lower surface have fine hair.

Flowers are collected in panicles at the tips of branches, 15-60 cm long, have 10-60 buds divided into several panicles. The flower has 5 petals, rounded oval, 4-9 mm, thick and fine haired.

Bright yellow crown, 5 strands, bald, inverted egg round, flag with 1-2 mm long nails. Ten stamens to a length of 1 cm or more are the same length as the ovaries and pistil stems.

Flat-shaped pods, 15-30 cm long, 12-16 mm wide, 20-30 seeds with a thickened edge and at the end of the exposure. Egg-shaped seeds, flat, 6.5-8 mm long, 6 mm wide, light brown and glossy.





Kassod tree grows well in tropical lowlands with monsoon climate, rainfall between 500-1000 mm/year, 20-31C, deep and fertile soils with a pH of 5.5-7.5. This plant can not stand the cold, freezing and above the altitude of 1300 m.

Johar is often planted in agroforestry as well as intercrops, marginal plants, wind barrier, shade plants for tea, coffee and cocoa. Often planted as roadside shade trees, ornamental trees in parks and rehabilitating mining areas.

Hard and heavy wood for B.J. 0.6-1.01 at 15% moisture content. Whitish sapwood and terrace dark brown to black with yellowish patches. Terrace wood has a durable class I and a strong class I-II for making bridges and poles. Beautiful colors and motifs are popular for making furniture and decorative panels.

Young leaves and flowers are boiled and water replaced several times used as a vegetable dish. Young leaves, flowers and pods for ruminant feed, but alkaloids are toxic to non-ruminants including pigs and poultry

Bark, leaves and fruit produce tanners. Simplisia used for medicine uses leaves, root bark and seeds. The root is used to treat intestinal worms and convulsions in children. Wood for laxative and treat scabies. Leaves as a drug for malaria, reduce blood glucose and skin diseases.

The leaves and other parts contain antrakinona, antrona, flavona, various triterpenoids, alkaloids and cassiadimine. Root bark contains lupeol, betalin and diantrakinon. Seeds contain fat and sitosterin.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Tribe: Cassieae
Genus: Senna
Species: Senna siamea

Popular Posts

Laniger bat tick (Ixodes lanigeri), new hard tick species (Ixodidae) from mouse-eared bats (Myotis) in Vietnam

NEWS - Researchers have identified Ixodes ticks from Vietnam based on morphological and molecular characteristics of females, nymphs and larvae as a new species, laniger bat tick ( Ixodes lanigeri ), which like other members of the Ixodes ariadnae complex appears to show a preference for vesper bats as a typical host. Historically, for more than a century and a half, only one species has been called the “long-legged bat tick”: Ixodes vespertilionis Koch. However, over the past decade, it has been molecularly recognized that long-legged ixodid ticks associated with bats may represent at least six species. Host associations and geographic separation may explain the evolutionary divergence of the new species from its closest living relative Murina hilgendorfi Peters in East Asia, Japan, as no Myotis or Murina spp. have overlapping distributions between Vietnam and the Japanese mainland. On the other hand, assuming that I. lanigeri may be present in other myotine bats and knowing that s...

Tekijem (Cyperus cyperoides)

Tekijem ( Cyperus cyperoides ) is a plant species in Cyperaceae, annual grasses that grow in seasonal wetlands, open or shaded fields, swamps, ponds, rice fields, roadsides, open forests, secondary forests and shrubs at altitudes up to 1,800 m in the tropics. C. cyperoides has an upright, triangular shape, 20-75 cm tall from a very short rhizome and has no stolon. The lanceolate-shaped leaves are narrow and long, the tips are pointed, slippery, shiny, green and grow at the bottom and at the top of the stem. The terminal flower appears on the tip of the stem, cylindrical spiklet shaped and green. Each stem has two to seven flowers, each of which has a short or long stem that grows at the end of the stem together with the leaves. Tekijem grows solitary or in small groups at a distance. Propagating using vegetative and generative methods using seeds. At least three sub-species are Cyperus cyperoides cyperoides , Cyperus cyperoides flavus and Cyperus cyperoides pseudoflavus . Th...

Large pro rotifer (Proales amplus), new monogonont with large epipharynx from Korea (Rotifera, Proalidae)

NEWS - Large pro rotifer ( Proales amplus ) is the 42nd species in the genus Proales that exhibits unique morphological characteristics on the trophy, especially the unmatched epipharynx that prevents misidentification with other species. The epithet amplus is derived from the Latin word meaning large or wide, referring to the size and shape of the epipharynx. Proalidae Harring & Myers 1924 includes 4 genera and 53 species that are distributed throughout the biogeography and inhabit a variety of environments, including freshwater, saltwater and terrestrial environments. The genus Proales includes 41 species that are characterized by various morphological features. In Korea, the presence of Proalidae has been documented with 5 species: Bryceella perpusilla (Wilts, Martínez Arbizu & Ahlrichs, 2010), B. stylata (Milne, 1886), B. tenella (Bryce, 1897), Proales fallaciosa (Wulfert, 1937) and Proalinopsis caudatus (Collins, 1872). The habitus of P. amplus has some similarities w...