Uses for Canadian Thistle

Canadian thistle, otherwise known as "Cirsium arvense," is a native plant of the Mediterranean region and southeast Europe. It grows to the height of two to three feet tall. This perennial plant grows by spreading its seeds and underground rhizomes. The main pollinator is the honeybee. Each plant produces at least 1,500 seeds, which involves both male and female plants. Certain parts of the plant can be used for various purposes.

Edible Uses

The leaves of the Canadian thistle are edible and can be used to prepare a variety of dishes. For example, the leaves can be eaten raw with sandwiches or they can be crushed and eaten with no added ingredients. Before eating the leaves, the prickles should be removed. The stalks can also be de-spined, steamed and eaten. Another way to eat Canadian thistle is by preparing the top of the young plants as a potherb. Preparation involves washing of the leaves to remove dirt and insects. The prickles can be manually taken off or they can be taken off after they are cooked. Puree the leaves and add seasonings to taste. Serve as a side dish or with other vegetables.

Toothache Remedy

The leaves of the Canadian thistle can be used to treat common illnesses, such as toothache, which can be relieved by chewing on the roots. The juice from the roots contains anti-inflammatory properties, which soothe and reduce painful swelling. It is common for flatulence to occur when the juice from the root is ingested. This is caused by an indigestible starch called "Inulin," which passes through the digestive system, then ferments.

Other Medicinal Uses

Native Americans used Canadian thistle roots to treat worms, poison ivy, mouth diseases and tuberculosis, and as a mouthwash for children. It is also effective when used as a tonic to treat gastrointestinal ailments.