Dog fennel (Eupatorium capillifolium)

Dog fennel (Eupatorium capillifolium) is a tall, perennial herb known for its feathery, finely divided leaves that release a strong odor when crushed. The plant produces small, white flowers in clusters that bloom from late summer to early fall. It spreads through wind-dispersed seeds, enabling it to thrive in various environments.

**Uses:**
- **Traditional Uses:** Historically utilized in folk medicine, though caution is advised due to its potential toxicity.
- **Natural Repellent:** The strong odor of dog fennel makes it useful as a natural insect repellent.

**Precautions:**
- **Toxicity:** The plant contains toxic alkaloids, posing a risk to both humans and animals if ingested. Exercise caution, especially around pets and children.
- **Skin Sensitivity:** Some individuals may experience skin irritation or allergic reactions from handling the plant. Wearing gloves and protective clothing is recommended.
- **Invasiveness:** Dog fennel can be invasive, often overtaking native vegetation. Regular management is necessary to control its spread.

Always consult an expert before using dog fennel for any medicinal purposes to ensure safety and efficacy.