Eurybia sibirica

Eurybia sibirica, commonly known as the Siberian aster or arctic aster, is an herbaceous perennial native to north western North America and northern Eurasia. It is found largely in open areas of subarctic boreal forests, though it is also found in a wide variety of habitats in the region. It is similar in appearance to Eurybia merita, but their ranges overlap only near the border between the US and Canada, where E. sibirica is generally found at higher elevations.

Siberian aster
Eurybia sibrica in Yukon

Secure  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eurybia
Species:
E. sibirica
Binomial name
Eurybia sibirica
Synonyms[2]

Eurybia sibirica is a perennial herb up to 60 cm (2 feet) tall, spreading by means of thin underground rhizomes. The plant produces flower heads either one at a time or in dense flat-topped arrays of 2-50 heads. Each head contains 12-50 white, purple, or pale violet ray florets surrounding 25-125 yellow disc florets.[3] The involucral bracts are reddish-purple (anthocyanic).[4]

Distribution and habitat

Eurybia sibirica is present in much of the subarctic region of world, in northwestern North America and Northern Europe and Northern Asia. It is common in northern Asia (Buryatia, Yakutia, Mongolia, Japan, Chinese Province of Heilongjiang and other parts of North of China).[3] It is also found in European Russia and Scandinavia, as well as northern and western Canada (Alberta, British Columbia, and all 3 Arctic provinces) and United States (Alaska plus the mountains of Washington, Idaho, and Montana).[5] It is found at heights ranging from sea level up to 2200 metres in sandy or gravely soils in disturbed or open areas of boreal forests. It is also present in wet meadows, in open areas of aspen and spruce woods and along riparian thickets. In addition, it is common growing in sandy or gravelly stream flats, along stream banks and the shores of lakes, on bluffs, in sand dunes and other sandy places, and in both sub-alpine and mountain meadows.[6]

Subspecies[2]
  • Eurybia sibirica subsp. sibirica
  • Eurybia sibirica subsp. subintegerrima (Trautv.) Greuter
gollark: ```The loneliest is a.(Abs function)(returns the absolute value of 'a thought')Abs takes a thoughtIf a thought is greater than nothingGive back a thoughtElseGive back nothing without a thought(end Abs function)(Pow function)(returns 'all' raised to 'your base')Pow takes all and your baseIf your base is emptyGive back the loneliest (end if)If your base is less than nothingPut nothing without your base into your baseGive back the loneliest over Pow taking all, your base (end if)Put the loneliest into the onePut all into the magicWhile the one is smaller than your basePut all of the magic into the magicBuild the one up (end while)Give back the magic(end Pow function)(some constants for Sqrt function)The wing is strange.My song is knickknack. lumberjacksPut Pow taking my song, the wing into the dawnHalf is flummoxing. huzza(Sqrt function)(iterates until the estimate update is less than 'the dawn')Sqrt takes a mountainIf a mountain is nowhereGive back nothing (end if)Put a mountain into a molehillPut a molehill into the seaWhile Abs taking the sea is greater than the dawnPut a molehill into the seaPut Half of a molehill with Half of a mountain over a molehill into a molehillPut the sea without a molehill into the sea (end while)Give back a molehill(end Sqrt function)```A simple maths library.
gollark: https://github.com/dylanbeattie/rockstar
gollark: ```Midnight takes your heart and your soulWhile your heart is as high as your soulPut your heart without your soul into your heartGive back your heartDesire is a lovestruck ladykillerMy world is nothing Fire is iceHate is waterUntil my world is Desire,Build my world upIf Midnight taking my world, Fire is nothing and Midnight taking my world, Hate is nothingShout "FizzBuzz!"Take it to the topIf Midnight taking my world, Fire is nothingShout "Fizz!"Take it to the topIf Midnight taking my world, Hate is nothingSay "Buzz!"Take it to the topWhisper my world```A fizzbuzz program.
gollark: !>!
gollark: ¶↓ßŧ#

References

  1. "Eurybia sibirica". NatureServe Explorer. NatureServe. Retrieved 2007-06-14.
  2. "Eurybia sibirica (L.) G.L.Nesom". The Global Compositae Checklist (GCC) via The Plant List.
  3. "Eurybia sibirica". Flora of China via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  4. Hitchcock, C.L. and A. Cronquist. 1987. Flora of the Pacific Northwest, an Illustrated Manual. University of Washington Press, Seattle and London.
  5. "Aster sibiricus". Flora Europaea. Edinburgh: Royal Botanical Garden. 2008.
  6. Brouillet, Luc (2006). "Eurybia sibirica". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 20. New York and Oxford via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
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