Nabalus altissimus explained

Nabalus altissimus (formerly Prenanthes altissima), commonly called the tall rattlesnakeroot or white lettuce, is a species of plant in the family Asteraceae. In 2010 it was reclassified from the genus Prenanthes to Nabalus.^[1]

Habitat

This perennial grows in mesic environments including riparian zones and blooms in late summer and autumn.^{[2] [3]}

Range

This species occurs in the eastern United States west to Michigan, Missouri, and Texas as well as in Quebec, Canada but is unknown in Mississippi, and Florida.^{[2] [3]} In Texas, it occurs in Jasper and Newton counties in the extreme southeastern part of the state.^[3]

Notes and References

1. Web site: ITIS - Report: Prenanthes altissima.
2. Yatskievych, G. 2006. Steyermark's Flora of Missouri. 3 Vols. The Missouri Botanical Garden Press, St. Louis, MO, USA. Vol. 2: 377-382
3. Singhurst, J.R., O’Kennon, R.J., Holmes, W.C. 2004. The genus Prenanthes (Asteraceae:Lactuceae) in Texas. Sida 21(1):181–191.