Amsonia

Amsonia is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean.[2][3] It was named in honor of the American physician John Amson.[4] Members of the genus are commonly known as bluestars.[5]

Species[2][6][3]
  1. Amsonia ciliata Walter – fringed bluestar – SE US, S Great Plains
  2. Amsonia elliptica (Thunb. ex Murray) Roem. & Schult. – Japanese bluestar – China, Japan, Korea
  3. Amsonia fugatei S.P.McLaughlin – San Antonio bluestar – New Mexico
  4. Amsonia grandiflora Alexander – Arizona bluestar – Arizona, Sonora, Durango
  5. Amsonia hubrichtii Woodson – Hubricht's bluestar – Arkansas, Oklahoma
  6. Amsonia illustris Woodson – Ozark bluestar – Mississippi Valley, also Nevada
  7. Amsonia jonesii Woodson – Jones' bluestar – Arizona, New Mexico, Utah, Colorado
  8. Amsonia kearneyana Woodson – Kearney's bluestar – Baboquivari in Pima Co. in Arizona
  9. Amsonia longiflora Torr. – tubular bluestar – Arizona, New Mexico, Texas, Coahuila
  10. Amsonia ludoviciana Vail – Louisiana bluestar – Louisiana, Mississippi, Georgia
  11. Amsonia orientalis Decne. – European bluestar – Greece, Turkey
  12. Amsonia palmeri A.Gray – Palmer's bluestar – Arizona, New Mexico, Texas, Sonora, Chihuahua
  13. Amsonia peeblesii Woodson – Peebles' bluestar – Arizona
  14. Amsonia repens Shinners – creeping bluestar – E Texas, SW Louisiana
  15. Amsonia rigida Shuttlw. ex Small – stiff bluestar – from Georgia to Louisiana
  16. Amsonia tabernaemontana Walter – eastern bluestar – S + C + E United States
  17. Amsonia tharpii Woodson – feltleaf bluestar – W Texas, SE New Mexico
  18. Amsonia tomentosa Torr. & Frém. – woolly bluestar – SW US; Chihuahua

bluestars
Amsonia tabernaemontana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Subfamily: Rauvolfioideae
Tribe: Amsonieae
M.E.Endress
Genus: Amsonia
Walter[1]
Synonyms[2]
  • Ansonia Raf.
Single paired follicle (i.e. ‘V’-shaped pair of follicles) detached from specimen of Amsonia tabernaemontana

References
  1. "Genus: Amsonia Walter". Germplasm Resources Information Network. United States Department of Agriculture. 2003-03-14. Archived from the original on 2012-10-12. Retrieved 2011-09-23.
  2. "World Checklist of Selected Plant Families". Retrieved May 21, 2014.
  3. Flora of China Vol. 16 Page 156 水甘草属 shui gan cao shu Amsonia Walter, Fl. Carol. 98. 1788.
  4. Pringle, James S., History and Eponymy of the Genus Name Amsonia (Apocynaceae), in SIDA 21(1):379-387. 2004
  5. "Amsonia". Integrated Taxonomic Information System. Retrieved 2011-09-23.
  6. Biota of North America Program 2013 county distribution maps


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