Traditional uses and benefits of Blinding Tree

Item: Traditional uses and benefits of Blinding Tree
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Author: Sylvia

Blinding Tree Quick Facts
Name:	Blinding Tree
Scientific Name:	Excoecaria agallocha
Origin	Along the coasts of southern India and Sri Lanka, to southern China, Taiwan, Burma (Myanmar), Indo-China, southern Japan, south throughout Southeast Asia
Colors	Initially green turning to black as they ripen
Shapes	Small smooth capsular fruits that are almost round, 3-lobed, 4.5–5 mm long and 8–9 mm wide
Health benefits	Support for epilepsy, obstinate ulcers, leprosy, rheumatism, paralysis, pneumonia, asthma, constipation, arthritis, diabetes, conjunctivitis, dermatitis, and hematuria

Excoecaria agallocha, commonly known as Blinding Tree, Blind-Your-Eyes or Milky Mangrove is a mangrove species, belongs to the genus Excoecaria of the family Euphorbiaceae Juss. (Spurge family). The plant is native along the coasts of southern India and Sri Lanka, to southern China, Taiwan, Burma (Myanmar), Indo-China, southern Japan, south throughout Southeast Asia, to Papua New Guinea, Northern Australia and Pacific Islands. Within Australia, it thrives from northern New South Wales along the northern coastline around to Western Australia. The species has many common names, including blind-your-eye mangrove, blinding tree, buta buta tree, milky mangrove, poison fish tree, and river poison tree, Blind-Your-Eyes, Buta-Buta, Bebuta, Kayu Buta-buta, Kampetti, Thilla, Tilai, Geva, Gewa, Komatti, scrub poison tree, blind-your-eyes-tree, cametty eagle wood and salt swamp tiger’s milk.

Most of the names refer to its toxic properties or its propensity to cause blindness when its latex comes into contact with the eyes. The plant is well-protected by chemical defenses; these include diterpenoids, triterpenoids and flavonoids. The milky latex of Excoecaria agallocha is very poisonous and powerfully irritant, which is not unusual in milky species of plant in the family Euphorbiaceae. Contact with skin causes irritation and rapid blistering; slight contact with eyes can cause temporary blindness, hence the common names that refer to blindness. Even the generic name is from the Latin for “blinder”.

Blinding Tree Facts

Name	Blinding Tree
Scientific Name	Excoecaria agallocha
Native	Along the coasts of southern India and Sri Lanka, to southern China, Taiwan, Burma (Myanmar), Indo-China, southern Japan, south throughout Southeast Asia, to Papua New Guinea, Northern Australia and Pacific Islands
Common Names	Blind-your-eye mangrove, blinding tree, buta buta tree, milky mangrove, poison fish tree, and river poison tree, Blind-Your-Eyes, Buta-Buta, Bebuta, Kayu Buta-buta, Kampetti, Thilla, Tilai, Geva, Gewa, Komatti, scrub poison tree, blind-your-eyes-tree, cametty eagle wood, salt swamp tiger’s milk
Name in Other Languages	Bengali: Gewa, geoya (গেওয়া) Burma: Kayaw taway Chinese: Hai qi (海漆), Tǔ chénxiāng (土沉香) English: Blind-your-eye, Blind-your-eye mangrove, Blind-your-eyes-tree, Blindingtree, Milky mangrove, River poisontree, Scrub poison tree, buta-buta, geor, gewa, cametty eagle wood, milky mangrove, river poison tree, salt swamp tiger’s milk French: Arbre aveuglant , géor German: Geor-Baum, Gewa-Baum Gujarati: Geva (ગેવા), hura (હુરા) Hindi: Gangiva, Tejbala, Thillai Indonesia: Kayu buta-buta, Kayu betah, Menengan Italian: Geor Japanese: Shimashiraki (シマシラキ), Okinawajinkou (オキナワジンコウ) Javanese: Buta-buta Kannada: Harogida (ಹಾರೋಗಿಡ), tilla (ತಿಲ್ಲ) Konkani: Kharo uro (खारो उरो), uro (उरो) Malay: Bebuta, Buta-buta, Pokok Bebuta Malayalam: Komati, Mammetti, Kannampotti, katappala (കടപ്പാല), Kammetti, Kannampotti, , kēāmaṭṭi (കോമട്ടി) koomatti Malaysia: Buta-buta, Bebuta Marathi: Geva (गेवा), phungali (फुंगळी), surund (सुरुंड) Myanmar: Kayaw taway Oriya: Guna (ଗୁଣା) Papua New Guinea: Sismet, Te’eria, Su Philippines: Buta-buta, lipata Russian: Agallokhovoye derevo (Агаллоховое дерево) Sanskrit: Agaru, Gangwa, Gaoura Sinhalese: Thelakeeriya (තෙලකීරිය), Telkeeriya (තෙල්කීරිය ), Talakeeriya (තලකීරිය) Sundanese: Warejit Tamil: Tillai (தில்லை), akati (அகதி), akkolli (ஆக்கொல்லி), ampala-virutcam (அம்பலவிருட்சம்), ampalatti (அம்பலத்தி), atiya-kuttan (ஆடியகூத்தன்), kokkumeni (கொக்குமேனி), paruvi (பருவி), tillai (தில்லை), vari-vanam (வரிவனம்) Telugu: Tilla (తిల్ల) Thailand: Buu-to, Tatum thale (ตาตุ่มทะเล), tatum (ตาตุ่ม) Tulu: Neerakanapatte (ನೀರಕಣಪಟ್ಟೆ) Vietnam: Gi[as], Tr[af]m[ur], Trà mủ
Plant Growth Habit	Much-branched tree
Growing Climates	Mangrove, tidal forest, cleared forest, brackish areas, rice fields; on mud and sand. It grows in muddy and sandy habitats, often in areas with a high input of fresh water, or landward margins of mangrove forests. It occurs locally in all mangrove forests and in the vicinity of Kranji Reservoir
Plant Size	Grow up to 15 m high
Root	Shallow, surface-running roots are often knotted and covered with lenticels
Bark	Bark is greyish-brown, warty, with vertical fissures and lenticels
Leaf	Leaves are alternate, shiny, pointed at the top, somewhat rounded at the base, elliptic-ovate, oblong-ovate or ovate, and 6 to 12 centimeters long and 1.5 to 6 cm wide
Flowering season	Between October and February
Flower	Trees are either male or female (dioecious). Male flowers form drooping tassels, while female flowers appear as shorter spikes.
Fruit Shape & Size	Small smooth capsular fruits that are almost round, 3-lobed, 4.5–5 mm long and 8–9 mm wide
Fruit Color	Initially green turning to black as they ripen
Propagation	By seed
Plant Parts Used	Latex, leaves, roots, bark
Season	Between January and July

Plant Description

Blinding Tree is much-branched small tree that normally grows up to 15 m high. The plant has shallow, surface-running roots that are often knotted and are covered with lenticels. Its bark is greyish-brown, warty, with vertical fissures and lenticels. The plant exudes white latex from any broken part. It is also deciduous, and usually sheds its leaves just before the onset of flowering. The plant is found growing in mangrove, tidal forest, cleared forest, brackish areas, and rice fields and on mud and sand. It grows in muddy and sandy habitats, often in areas with a high input of fresh water, or landward margins of mangrove forests. It occurs locally in all mangrove forests and in the vicinity of Kranji Reservoir.

Leaves

Leaves are alternate, shiny, pointed at the top, somewhat rounded at the base, elliptic-ovate, oblong-ovate or ovate, and 6 to 12 centimeters long and 1.5 to 6 cm wide, and with 2–4 glands on each side of the base where the leaf blade joins the petiole (leaf stalk). It is spirally arranged, stalked, and have papery and slightly fleshy leaf blades with shallowly toothed-margins, green above, light green below. Young leaves are pink, old leaves turn yellow then red before dropping off. Leaves usually drop off after dry weather.

Flowers

The Tree is dioecious, producing only male or female flowers on different individuals. The minute (less than 1mm) yellow flowers are borne on catkins at the axillary. Male flowers start as upright narrow cones when young and as they develop, elongate into longer spikes about 5-10 cm that eventually form drooping yellow tassels. Male flowers are said to be “very scented”. Female flowers appear in shorter spikes. They are much smaller, stalked, and arranged on catkins that are 0.5–3 cm long. According to Tomlinson the flowers are pollinated by insects as the pollen is sticky. Bees are common visitors and may be the chief pollinators. Flowering normally takes place in between October and February.

Fruits

Fertile flowers are followed by small smooth capsular fruits that are almost round, 3-lobed, 4.5–5 mm long and 8–9 mm wide. The fruit is initially green turning to black as they ripen into dry capsules. Each capsule is made up of three portions, containing tiny dark to black seeds.