- Also known as (or relevant to)
- Family
- Compositae
- English Names
- Canadian Butterweed
- Canadiarian Fleabane
- Canadian - Coltstail
- Prideweed
- Squaw weed
- Horseweed
- Natural Habitat
- Canada
- North- and Central U. S. A.
- Central and Southern Europe
- India
- South Africa
- Part(s) Used
- Herba Erigerontis canadensis
- Oleum Erigerontis
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- Constituent(s)
- tannic acid
- gallic acid
- volatile oil
- resin
- amine
- bitter principle
- Action
- herb: haemostatic
- diuretic
- astringent
- tonic
- sedative. It is a specific in uterine haemorrhage. - Oil: vermifuge. In the U. S. A.
- the plant causes a mild degree of hay fever
- but in other countries it is a doubtful cause
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