Rhododendron campanulatum D. Don |
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Botanical Name |
: |
Rhododendron campanulatum D. Don |
Family |
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Ericaceae |
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General Info
| Description |
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An evergreen shrub or a small tree, 4-6 m in height, up to 90 cm in girth. Bark thin, cinnamon-coloured or grey, smooth, peeling off in thin, papery flakes; leaves elliptic or ovate, leathery, 7-15 cm x 3-6 cm, undersurface with rusty-brown tomentum; flowers white, in various shades of purple or pink, spotted within, in few-flowered corymbs; capsules cylindric, more or less curved; seeds linear-oblong, compressed. |
| Herb Effects |
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Hypotensive (EtOH leaf extract) and toxic to livestock (leaf). |
Chemistry
| Active Ingredients |
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Quercetin (flower and leaf); myricetin (flower); campanulin, ursolic acid, epi-friedelanol, friedelin and amyrin (leaf). |
| Chemistry
of Active Ingredients |
|
|
|
 |
Name |
CAS# |
IUPAC Name |
Formula |
Structure |
 |
|
| Quercetin |
Not Available |
2-(3,4-dihydroxyphen
yl)-3,4,5-trihydroxy
-chromen-7-one |
C15H10O7 |
|
| Myricetin |
529-44-2 |
3,4,5-trihydroxy-2-(
3,4,5-trihydroxyphen
yl)-chromen-7-one |
C15H10O8 |
|
| Ursolic acid |
77-52-1 |
10-hydroxy-1,2,6a,6b
,9,9,12a-heptamethyl
-2,3,4,5,6,6a,7,8,8a
,10,11,12, |
C30H48O3 |
|
| Friedelin |
559-74-0 |
4,4a,6a,6b,8a,11,11,
14a-octamethyl-2,4,5
,6,6a,7,8,9,10,12,12
a,13,14,14
b-tetrad
ecahydro-1H-picen-3-
one |
C30H50O |
|
| Amyrin |
559-70-6 |
(3S,4aS,6aR,6bS,8aR,
12aR,14aS,14bS)-4,4,
6a,6b,8a,11,11,14b-o
ctamethyl-
1,2,3,4a
,5,6,7,8,9,10,12,12a
,14,14a-tetradecahyd
ropicen-3-ol |
C30H50O |
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|
Pharmacology
| Medicinal Use |
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In rheumatism, sciatica and syphilis (leaf); used as a snuff in the treatment of colds and headache (leaves); used in the treatment of phthisis and chronic fevers (dried twigs and wood). |
| Reference |
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 Chandel et al., Biodiversity in Medicinal and Aromatic Plants in India
Uniyal et al., Medicinal Flora of Garhwal Himalayas. |
Dealers
Products
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