Arctium tomentosum

{{Short description|Species of flowering plant}}

{{Speciesbox

| image = Arctium tomentosum - Kulna.jpg

| image_caption = Close-up on a flowers

| genus = Arctium

| species = tomentosum

| authority = Mill. 1768

| synonyms_ref = [http://www.theplantlist.org/tpl1.1/record/gcc-91826 The Plant List Arctium tomentosum Mill.]

| synonyms =

  • Arctium leptophyllum Klokov
  • Lappa tomentosa (Mill.) Lam.

}}

Arctium tomentosum, commonly known as the woolly burdock{{PLANTS|id=ARTO|taxon=Arctium tomentosum|accessdate=8 January 2016}} or downy burdock, is a species of burdock belonging to the family Asteraceae.[http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameCache=Arctium%20tomentosum&PTRefFk=7000000 - Euro+Med PlantBase - The information resource for Euro-Mediterranean plant diversity.] The species was described by Philip Miller in 1768.

Distribution

This species is native to Eurasia from Spain[https://luirig.altervista.org/flora/taxa/index1.php?scientific-name=arctium+tomentosum Altervista Flora Italiana, Bardana lanuta, Arctium tomentosum Mill.] includes photos plus European distribution map to Xinjiang Province in western China.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200023154 Flora of China Vol. 20-21 Page 153 毛头牛蒡 mao tou niu bang Arctium tomentosum Miller] It is also naturalized in other parts of the world such as North America.[https://bonap.net/MapGallery/County/Arctium%20lappa.png Biota of North America Program 2014 county distribution map]

Description

Arctium tomentosum is a biennial herbaceous plant. The stem is erect, with ascending branches. It can reach a height of about {{convert|2|m}}. 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 {{convert|20|-|50|cm}} and a width of {{convert|10|-|30|cm}}. Flowers are purplish red, with a diameter of {{convert|0.9|-|1.2|cm}}. 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.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200023154 Flora of North America Vol. 19, 20 and 21 Page 169 Woolly burdock, bardane tomenteuse, Arctium tomentosum Miller]

Gallery

Arctium tomentosum - Keila.jpg |Plant

File:Asteraceae - Arctium tomentosum-000.JPG|Leaf

File:Asteraceae - Arctium tomentosum.JPG|Inflorescence

References

{{Reflist}}

Sources

  • 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