Cirsium helenioides

Cirsium helenioides, called melancholy thistle,[2] is an Asian and Arctic species of plants in the thistle tribe within the sunflower family. The species is native to Greenland, Iceland, Norway, Sweden, Finland, Russia, Xinjiang, Kazakhstan.[3][4][5]

Cirsium helenioides
In Finland
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cirsium
Species:
C. helenioides
Binomial name
Cirsium helenioides
(L.) Hill
Synonyms[1]
  • Carduus helenioides L.
  • Cirsium heterophylloides Pavlov
  • Cirsium inuloides Rchb.
  • Cnicus helenioides (L.) Willd.
  • Cnicus helenioides (L.) Retz.

Cirsium helenioides is a biennial herb up to 120 cm (48 inches) tall, usually not branched, blooming only once before dying. Leaves are green on top, woolly underneath, with thin spines along the edges. There is one flower head per plant, with purple (occasionally white) disc florets but no ray florets.[5][6][7][8]

References
  1. The Plant List, Cirsium helenioides (L.) Hill
  2. "Cirsium helenioides". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 17 January 2016.
  3. Biota of North America Program 2014 county distribution map
  4. Tropicos, Cirsium grahamii A. Gray
  5. Melancholy thistle , Flora of North America, Cirsium helenioides (L.) Hill
  6. Naturgate, Melancholy Thistle Cirsium helenioides
  7. Flora of China, 堆心蓟 dui xin ji, Cirsium helenioides (Linnaeus) Hill
  8. Plantarium, Плантариум, Cirsium helenioides (L.) Hill Описание таксона Archived 2015-04-10 at the Wayback Machine, in Russian with photos


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