Thailand Flower

Thailand Flower
Cassia fistula

Cassia fistula, known as the golden shower tree and other names, is a flowering plant in the family Fabaceae, native to southern Asia, from southern Pakistan east through India to Myanmar and south to Sri Lanka. It is associated with the Mullai region of Sangam landscape. It is the national tree of Thailand, and its flower is Thailand's national flower. It is also state flower of Kerala in India and of immense importance amongst Malayali population. It is a popular ornamental plant and is an herbal medicine.

They have different name in each area for "Cassia fistula". Almost of Thai people call "Cassia fistula" as “Khun” because it’s easier to remember. North people call “Lom Lang”. South people call “Or Dip”. People in Pattani province calls “Luk Klur” or “Luk Keoy”. Hill tribe and people in Kamchanaburi Province calls “Ku Pa Ya”.

The golden shower tree is a medium-sized tree, growing to 10–20 m (33–66 ft) tall with fast growth. The leaves are deciduous, 15–60 cm (6–24 in) long, pinnate with 3–8 pairs of leaflets, each leaflet 7–21 cm (3–8 inches) long and 4–9 cm (1.5–3.5 in) broad. The flowers are produced in pendulous racemes 20–40 cm (8–15 in) long, each flower 4–7 cm diameter with five yellow petals of equal size and shape. The fruit is a legume, 30–60 cm (12–23 in) long and 1.5–2.5 cm (0.5–1 in) broad, with a pungent odor and containing several seeds. The seeds are poisonous.[1] The tree has strong and very durable wood, and has been used to construct "Ahala Kanuwa", a place at Adams Peak, Sri Lanka, which is made of Cassia fistula heartwood.

In Ayurvedic medicine, golden shower tree is known as aragvadha, meaning "disease killer". The root is considered a very strong purgative, medical citation needed and self-medication or any use without medical supervision is strongly advised against in Ayurvedic texts. Though its use in herbalism has been attested to for millennia, there has been rather little research in modern times. The purgative action is probably due to abundant 1, 8-dihydroxyanthraquinone and derivatives thereof. Many Fabaceae are a source of potent entheogens and other psychoactive compounds such as tryptamines; such plants are rarely found among the Caesalpinioideae.