Common Tansy (Tanacetum vulgare)
Common Tansy is an introduced, invasive plant, native to Europe and Asia. Leaves are arranged alternatively, finely compound. Flowers are button-like and yellow, blooming in mid August. Leaves and flowers are toxic.
Last changed on 2024-12-16
Common Names
- Common Tansy 🇨🇦
- Tanaisie 🇫🇷
- Rainfarn 🇩🇪
- Tanaceto, Tansi 🇲🇽
Photos
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Characteristics & Identification
How to Identify
The button-like, yellow flowers are the best characteristic to identify this flower.
Where and When to Spot
It is an invasive plant and can be seen blooming in almost every park along pathways in mid, end August.
Taxonomy
- Order: Asterales
- Family: Asteraceae
- Species: Tanacetum vulgare
Morphology
Flowers
- Color: yellow
- Shape: florets
- Inflorescence: cyme
Leaves
- Arrangement: alternate
- Petiole: short
- Shape: pinnate
- Margin: serrate
- Venation:
Observations by Park and Season
| Location | Spring | Summer | Autumn | Winter |
|---|---|---|---|---|
| Belvédère Outremont | - | x | - | x |
| Champ des Possibles | - | x | - | - |
| Parc Bernard-Landry | - | - | x | - |
| Parc de la Frayère | - | x | - | - |
"-" indicates no observation. It may not necessarily mean though that the species is absent from the park during that season.