Arctium tomentosum

Last updated

Arctium tomentosum
Arctium tomentosum - Kulna.jpg
Close-up on a flowers
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Arctium
Species:
A. tomentosum
Binomial name
Arctium tomentosum
Mill. 1768
Synonyms [1]
  • Arctium leptophyllumKlokov
  • 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]

Contents

Description

Arctium tomentosum is a biennial herbaceous plant. The stem is erect, with ascending branches. It can reach a 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.[ citation needed ] Flowers and fruits appear from July to September. [4] [5]

Taxonomy

Arctium tomentosum was first described by the English botanist Philip Miller in 1768. [6]

Distribution

Arctium tomentosum is native to Eurasia from Spain [7] to Xinjiang Province in western China. [5] It is also naturalized in other parts of the world such as North America. [8]

References

  1. The Plant List Arctium tomentosum Mill.
  2. NRCS. "Arctium tomentosum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 8 January 2016.
  3. - Euro+Med PlantBase - The information resource for Euro-Mediterranean plant diversity.
  4. Keil, David J. "Arctium tomentosum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 19–21 . New York and Oxford: Oxford University Press. Retrieved 13 August 2025 via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. 1 2 Flora of China Vol. 20-21 Page 153 毛头牛蒡 mao tou niu bang Arctium tomentosum Miller
  6. "Arctium tomentosumMill.". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens . Retrieved 13 August 2025.
  7. Altervista Flora Italiana, Bardana lanuta, Arctium tomentosum Mill. includes photos plus European distribution map
  8. Biota of North America Program 2014 county distribution map

Bibliography