AGERATUM CONYZOIDES L.

Family: Asteraceae

Bengali/vernacular name: Oochunti, Dochunti, Fulkuri.
Tribal name: Monipuizza Kher (Chakma); Achunai, Chunachu appa (Marma); Submenum (Tipra).
English name: Appa Grass, Goat weed.

Description of the plant:
AGERATUM CONYZOIDES L. is an erect, annual, foetid herb, 30-60 cm high. Leaves broadly ovate, crenate, hairy. Inflorescence a terminal corymb; flowers pale blue, in small head.

Using information:
Leaves are styptic and antiseptic; applied to wounds and cuts for quick healing and prevent tetanus; applied to boils as a poultice. As a fomentation the leaves and stems are used in skin diseases. Fresh juice of the leaves is used by the tribal of Chittagong Hill Tracts for treating jaundice. Poultice of the boiled leaf paste is used for headache by Marma's. Roots are antilithic. Roots and leaves are considered antidysenteric. Plant juice is used to cure fever and said to be remedy for prolapsus ani.

EtOH(50%) extract of the plant is insecticidal. Flower buds cure cancerous growth (Asolkar et al., 1992).


Ageratum Conyzoides
AGERATUM CONYZOIDES L.


Chemical constituents:
Herb contains friedelin, sterol, ß-sitosterol, stigmasterol and α-spinasterol, hydrocarbons, coumarin, flavonoids, hydrocarbons, caryophyllene, quercetin, kaempferol, chromones, phenol, essentisl oil and anti-gonadotropic hormones, precocenes 1 & 2. Leaves and stem contains alkaloids, stigmasterol (major), dotriacontene, fumeric, caffeic acids, 7-OMe-2, 2-di-Me-chromen (e) and new flavone, 5'-OMe-nobiletin. Leaves also contain stigmat-7-en-3-ol (major component).

A new chromine, conyzorigum have been isolated from leaves of Nigerian plant. The plant is a good source of potassium. Eleven chromenes, sitosterol, sesamin and caryophyllene oxide have been found in the aerial parts. Nine methoxyflavones were isolated from the aerial parts. The leaves, flowers and roots contain the anti-juvenile hormones, precocenes I & II. Aurantiamide acetate has also been isolated from this plant (Ghani, 2003; Asolkar et al., 1992).

Essential oil obtained from semi-dried whole herb (yield, 0.16%) composed of ageratochromene, 6- demethoxyagratochromene, γ-cadinene, ß-caryophyllene, d-α-pinene, ocimene, d-cadinene, eugenol and methyleugenol; first two are the major components. Plants grown in North Vietnam contain γ-cadinene, caryophyllene, demethoxyagratochromene and ageratochromene as main constituents (Asolkar et al., 1992).

Distribution:
In fallow lands, throughout the country.