Nabalus barbatus, the barbed rattlesnakeroot,[2] is a plant in the family Asteraceae. It is native to the Southeastern United States where it is found in small numbers in a few disjunct areas of remaining natural grassland. Because of this, it is considered a globally rare species, with only 35-70 remaining populations. Much of its natural habitat of prairie and savanna has been destroyed.[1] In 2010 it was reclassified from the genus Prenanthes to Nabalus.[3]

Nabalus barbatus

Vulnerable  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Nabalus
Species:
N. barbatus
Binomial name
Nabalus barbatus
(Torr. & A.Gray) A.Heller
Synonyms

Prenanthes barbata (Torr. & A.Gray) Milstead

It is a perennial that flowers in early fall, [4] although flowering has been reported into November.[5]

Habitat

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The natural habitat of this species is prairie and savanna.[1] It is known from rich hardwood and pine-oak forest as well as mesic ravine slope forest in the pineywoods of east Texas.[5]

Range

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This species occurs from Oklahoma, Arkansas, and Kentucky south from Texas to Georgia.[1] It occurs in nine counties in central and southeast Arkansas[6] and in 13 counties in the eastern four counties of Texas.[5]

References

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  1. ^ a b c d http://explorer.natureserve.org/servlet/NatureServe?searchName=Prenanthes+barbata Natureserve
  2. ^ USDA, NRCS (n.d.). "​Prenanthes barbata​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 13 October 2015.
  3. ^ "ITIS - Report: Prenanthes altissima".
  4. ^ Flora of North America, Prenanthes barbata
  5. ^ a b c Singhurst, J.R., O’Kennon, R.J., Holmes, W.C. 2004. The genus Prenanthes (Asteraceae:Lactuceae) in Texas. Sida 21(1):181–191.
  6. ^ Gentry, J.L.; Johnson, J.P.; Baker, B. T.; Witsell, C. T.; Ogle, J. D., eds. 2013. Atlas of the Vascular Plants of Arkansas. University of Arkansas Herbarium, Fayetteville, AR, USA