The broadly elliptic leaves can be up to 5 inches (13 centimeters) long and taper with teeth towards the base.

[8] The stalks below the heads are covered with scattered, simple and gland-tipped black hairs and contain a milky substance.

[7] Native to most of Europe,[11] Hieracium lachenalii was introduced to temperate parts of North America,[12] and to Australia.

[13] In Europe, the species is found in Austria, Belarus, Belgium, Bosnia-Herzegovina, Croatia, Corsica, the Czech Republic, Denmark, Estonia, France, Finland, Germany, Hungary, Ireland, Italy, Latvia,Liechtenstein, Lithuania, Luxemburg, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovenia, Slovakia, Sweden, Switzerland, Ukraine, the United Kingdom, and Russia.

[14] Canada: Provinces of British Columbia, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, and Quebec.