Arctium tomentosum

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Arctium tomentosum
Close-up on a flowers
Scientific classification Edit this classification
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 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]

Description

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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

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

Distribution

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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]

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  • Plant
    Plant
  • Leaf
    Leaf
  • Inflorescence
    Inflorescence

References

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  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. ^ a b Flora of China Vol. 20-21 Page 153 毛头牛蒡 mao tou niu bang Arctium tomentosum Miller
  6. ^ "Arctium tomentosum Mill.". 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

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  • Javzandolgor, Chuluunbat; Baasanmunkh, Shukherdorj; Tsegmed, Zagarjav; Oyuntsetseg, Batlai; Gundegmaa, Vanjil; Choi, Hyeok Jae (2021). "Arctium tomentosum (Asteraceae): A new report of a native genus in the flora of Mongolia" (PDF). Korean Journal of Plant Taxonomy. 51 (4): 391–394. doi:10.11110/kjpt.2021.51.4.391. Retrieved 14 August 2025.
  • López-Vinyallonga, Sara; Romaschenko, Kostyantyn; Susanna, Alfonso; Garcia-Jacas, Núria (April 2011). "Systematics of the Arctioid group: Disentangling Arctium and Cousinia (Cardueae, Carduinae)". Taxon. 60 (2): 539–554. doi:10.1002/tax.602020.
  • 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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