Amsonia hubrichtii

Amsonia hubrichtii, commonly known as Hubricht's bluestar,[2] Arkansas bluestar,[3] or thread-leaf bluestar,[4] is a North American species of perennial flowering plant in the Apocynaceae (dogbane) family, first described in 1943.[5] It is native to Oklahoma and Arkansas in the south-central United States.[6][7] It is commonly used as an ornamental plant.[4]

Amsonia hubrichtii

Vulnerable  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Genus: Amsonia
Species:
A. hubrichtii
Binomial name
Amsonia hubrichtii
Woodson 1943

Description

A. hubrechtii grows 60–90 centimetres (2–3 ft) high with upright stems that form bushy clumps. Leaves are very narrow, numerous, and alternate, giving the plant a feathery appearance. In the spring the leaves are bright green, and they turn gold in the fall. The flowers, borne in clusters at the end of each stem in the spring, are a powdery blue color and 1.3 centimetres (.5 in) across.[8] The flowers have 5 petals and fade to white with warmer temperatures.[4]

Distribution and habitat

The plant is known from a limited number of populations in Oklahoma and Arkansas, primarily within the Ouachita Mountains Natural Division. In Oklahoma, it is considered an endangered species.[7] It grows well in poor soils and full to partial sun.[4]

References
  1. "NatureServe Explorer - Amsonia hubrichtii". NatureServe Explorer Amsonia hubrichtii. NatureServe. 2022-06-22. Retrieved 22 Jun 2022.
  2. "USDA Plants Database". plants.sc.egov.usda.gov.
  3. "Arkansas Bluestar - Oklahoma State University". extension.okstate.edu. 18 October 2021.
  4. "Arkansas or Thread-leaf Blue Star, Amsonia hubrichtii". Wisconsin Horticulture.
  5. Woodson, Robert Everard 1943. A new Amsonia form the Ozarks of Arkansas. Rhodora 45(536): 328–329
  6. Kew World Checklist of Selected Plant Families
  7. Biota of North America Program 2013 county distribution map
  8. "Amsonia hubrichtii - Plant Finder". www.missouribotanicalgarden.org.
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