Coltsfoot

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{{Taxobox | color = lightgreen | name = Tussilago farfara | image = tussilagofarfara.jpg | image_width = 250px | regnum = Plantae | divisio = Magnoliophyta | classis = Magnoliopsida | ordo = Asterales | familia = Asteraceae | genus = Tussilago | species = T. farfara | binomial = Tussilago farfara | binomial_authority = L. }}

Coltsfoot or Tussilago farfara is a plant in the family Asteraceae.

It has been used medicinally as a cough suppressant. The name "tussilago" itself means "cough suppressant." The plant has been used since at least historical times to treat lung ailments such as asthma as well as various coughs by way of smoking. Crushed flowers supposedly cured skin conditions, and the plant has been consumed as a food item.

Coltsfoot is a perennial herbaceous plant that spreads by seeds and rhizomes. Tussilago is often found in colonies of dozens of plants. The flowers, which superficially resemble dandelions, appear in early spring before dandelions. Leaves do not appear usually until after the seeds are set.

Coltsfoot is native to several locations in Europe and Asia. It is also a common plant in North America and South America where it has been introduced, most likely by settlers as a medicinal item. The plant is often found in waste and disturbed places and along roadsides and paths. In some areas it is considered an invasive species.

Coltsfoot is used as a food plant by the larvae of some Lepidoptera species including The Gothic and Small Angle Shades.

Other common names include Ass's foot, Bull's foot, Butterbur, Coughwort, Farfara, Foal's foot, Foalswort, Horse Foot and Winter heliotrope.

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