Erigeron
CONYZA CANADENSIS (= ERIGERON CANADENSIS L.)
Erigeron
CONYZA CANADENSIS (= ERIGERON CANADENSIS L.)
Zarramaga; al. Kanadisches Berufskraut;
English
. Canadian (horseweed) fleabane.
Aerial
florida
.
The leaves of this species annually, are presented in petiolated and rosettes at the base, are
sessile
at the top and very narrow. Inflorescence, paniculiforme, tight and oblong, includes many chapters whose flowers outside ray and white, are arranged in several rows.
Source
.
Originally from North
America
, the plant
has
experienced
a
major expansion. It is frequently found on uncultivated land among the rubble, sand gardens and rivers.
Chemical composition.
Gálicos contains tannins, or acid - benzilbenzoico,
a
small amount of
essential
oil, and poliínos
a
cumuleno [741] Some steroids have been identified: estigmastenol, stigmastadienol and ketones for the [742] espinasterol, b - sitosterol [743] and similar derivatives [746] The leaves are rich in
a
heterósidos flavones: escutelarósido, escutelareína glucuronide (2. 5% in the leaves)
Pharmacological data.
The comments indicate that the
Erigeron
stimulates smooth
muscle
(rabbit ileum) and transiently decreases blood pressure (dog, 50mg / kg, aqueous extract, ip) The extract is analgesic and antipyretic. The toxicity is low (
D
. L. 50 = 5g / kg)
Experiments have been conducted to confirm the properties traditionally attributed to the drug: antidiarreica, anti - inflammatory, diuretic. The trials of acute and subacute have shown no toxicity of the drug criomolida of
Erigeron
(3 g / kg, 300 and 600 mg / kg / day, rat, per os)
The drug.
Caulinares leaves, scattered or alternate on
a
stalk covered with rough hairs are pale green ash, so lanceolate linear. Limbo, pointed at the tip, is entirely or partially serrated. The involvement of the bracts are linear, overlapping,
almost
glabrous, membranous at the edges.
Female
flowers
peripheral
ray tubulosas hermaphrodite flowers and plants embedded on
a
jack plane and
almost
naked. The microscopic analysis shows warted leaf hairs, fragments of hair silky and Vilan tricolporoideo with pollen exine equinulada. The
C
.
C
.
F
. made with
a
dye allows quick and
a
qualitative study of the drug.
Bibliography.
O. KOSTECKA - MADALSKA and
E
. BOROWCZAK - NIEMCZEWSKA.
Garbniki w
Erigeron
canadensis L. The tannines in
E
.
c
.
Acta Soc. Bot. Pol. 37, 657 - 664, 1968;
in Polish,
English
summary)
A
.
U
. RAHMAN and
H
. S.
E
. GATICA.
Isolation of o - benzilbenzoic acid from
Erigeron
canadensis L.
Rec. Trav. Chim. Pays - Bas, 88, 1332 - 1334, 1969.
F
. BOHLMANN and ZDERO.
Über ein neues Kumulen aus
Erigeron
canadensis L.
Tetrahedron Letters, 28) 2465 - 2466, 1970.
F
. Sengupta, M.
SEN
and S. DAS.
Chemical investigation of the whole plant of
Erigeron
canadensis.
J.
Indian
Chem. Soc. 62, 78 - 79, 1985.
D
. GRANCAI, V. Suchy, M. NAGY,
A
. FODOROVA and J. TOMKA.
Obsahove latky
Erigeron
canadensis L.
Ceskoslov. Farm. 34, 209 - 211, 1985.
S. Mr. DUBEY and
K
.
C
. GUPTA.
STEROL
composition of leaves of
Erigeron
canadensis L.
Phytotherapy, 59, 428 - 429, 1988.
D
.
P
. SINGH Maury,
H
. S. BAGH and B.
K
. SONIA.
Preliminary pharmacological studies on
Erigeron
canadensis Linnaeus.
Ind. J. Pharm. 35, 62 - 63, 1973.
R. CANIATO, R. FILIPPINI and
E
. M. CAPPELLETI.
Identification botanique des drogues pulvérisées plant.
Conyza canadensis (L. Cronq. =
Erigeron
canadensis L.
Plantes Méd. Phytother. 23, 90 - 94, 1989.
B.
F
. HRUTFIORD, W.
H
. HATHEWAY and
D
. B. SMITH.
Essentail of oil Conyza canadensis.
Phytochemistry, 27, 1858 - 1860, 1988.
Erigeron
, Dosier toxicological Laboratory.
Arkopharma
.
Diseases
whose treatment is appropriate in this plant.
Drop
.
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