Species : Lyonia ovalifolia (Wall) Drude
Local Name : Angeri lek (Nep)
Synonym : Pieris ovalifolia
Family : Ericaceae
Habitat : A shrub or small tree.
Distribution
:
Sikkim : Soreng-1200 m; Keetam- 2500 m, Singtam (800- 1800 m); Thung (1500 m); Rongli-Rabong,
Dzongu, Singhik, Bay-Tholung, Melli- Jorethang, Legshep- Yuksum.
Outside : In West Bengal- Samshing, Gorubathan, Nimbing, Kalimpong, Neora Valley, Mungpoo, Takdah, Kurseong, Darjeeling, Rimbick- Ramam,
Tonglu- Phalute (900- 3500m).
General : Himalaya (Punjab- Bhutan), North Assam, Myanmar, East to China, Mayaysia.
A shrub or semi evergreen tree 2- 10 cm. leaves ovate. 4-15x 1.5- 6 cm apex acuminate, base rounded to cordate; petioled 5-15 mm. Racemes c4O- flowered 3- 16 cm with- 2 leaf like bracts 1.5- 4 cm at base. Sepals triangular, 1.5- 2.5 mm, corolla cylindric, 8- 12 x 2.5- 5 mm, white, sometimes tinged. Pink towards apex, pubescent, filaments hairy towards base. Anthers with 2 spreading, basal spurs 0.5mm. capsule globose 2.5- 4.5 x 3.5- 6 mm. Seeds c 1 mm.
Flowering : May-July
Fruiting : August-December
History
:
Parts : Leaves and Young buds.
Status : Low risk
Phytochemistry : Lyoniside isolated as trihydrate from wood (Pharmazie 1984, 39, 425; Chem. Abstr. 1984, 101, 167203j).
Medicinal
The leaves contain toxic substances, andromedoxin and are insecticidal. Freshly collected young shoots or the stem bark is crushed and the prepared paste is applied externally on skin and cutaneous diseases as ringworm, scabies and eczema. It gives burning sensation on the affected area, which can be dip into the cold water to relieve from the pain. Note: They are poisonous to goat and cattle and cause cerebral symptoms. The honey from the flower is also reported to be poisonous.
1. Anonymous (1962). The Wealth of India, the raw materials, CSIR, New Delhi.
2. Bhujel, R.B. (1996). Studies on the Dicotyledonous Flora of Darjeeling District. Unpublished Ph.D Thesis University of North Bengal. 499.
3. Grierson, A.J.C & D.G. Long, (1991). The Flora of Bhutan. Royal Botanic Garden Edinburgh.
4. Progress Report of the Project "Studies on Medicinal Plants of Sikkim" (1998- 2001). State Council of Science and Technology for Sikkim.