Arctium tomentosum

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Arctium tomentosum
Asteraceae - Arctium tomentosum-001.JPG
Close-up on a flower
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Arctium
Species: A. tomentosum
Binomial name
Arctium tomentosum
Mill. 1768
  • Arctium leptophyllum Klokov
  • Lappa tomentosa (Mill.) Lam.

Arctium tomentosum, commonly known as the woolly burdock[2] or downy burdock, is a species of burdock belonging to the family Asteraceae. [3] The species was described by Philip Miller in 1768.[4]


This species is native to Eurasia from Spain[5] to Xinjiang Province in western China.[6] It is also widely naturalized in parts of North America. [7]


Arctium tomentosum is a biennial herbaceous plant. The stem is erect, with ascending branches. It can reach an height of about 2 metres (6 ft 7 in). Leaves are grayish white and quite felted, green and glabrous toward the stem. Basal leaves are petiolate. Leaf blade is heart-shaped, with rather denticulater margins. They can reach a length of 20–50 centimetres (7.9–19.7 in) and a width of 10–30 centimetres (3.9–11.8 in). Flowers are purplish red, with a diameter of 0.9–1.2 centimetres (0.35–0.47 in). This species can be distinguished from related ones because the underside of the leaves is covered with white woolly hairs. Flowers and fruits appear from July to September.[6][4]



  • Kell DJ. 2006. Arctium Linnaeus, Sp. Pl. 2: 816. 1753; Gen. Pl. ed. 5, 357. 1754. In Flora of North America Editorial Committee (Eds.) Flora of North America North of Mexico, Vol. 21: Asteraceae. New York and Oxford.
  • Lopez-Vinyallonga S, Romaschenko K, Susanna A and Garcia-Jacas N. 2011. Systematics of the Arctioid group: Disentangling Arctium and Cousinia (Cardueae, Carduinae). Taxon 60(2): 539-554.
  • Pignatti S. - Flora d'Italia (3 voll.) - Edagricole - 1982
  • Tutin, T.G. et al. - Flora Europaea, second edition - 1993
  • Zangheri P. - Flora Italica (2 voll.) - Cedam - 1976


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