Nabalus serpentaria

Nabalus serpentaria

Taxonavigation

Taxonavigation: Asterales
Classification System: APG IV Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Cladus: Asterids Cladus: Campanulids Ordo: Asterales

Familia: Asteraceae
Subfamilia: Cichorioideae
Tribus: Cichorieae
Subtribus: Crepidinae
Genus: Nabalus
Species: Nabalus serpentaria

Name

Nabalus serpentaria (Pursh) Hook., Fl. Bor.-Amer., Bot. N. Brit. Amer. 1: 294 (1833), "serpentarius".

Synonyms

• Basionym
  • Prenanthes serpentaria Pursh, Fl. Amer. Sept. 2: 499 (1813).
• Homotypic
  • Prenanthes alba var. serpentaria (Pursh) Torr., Comp. Fl. N. Middle Stat.: 277 (1826) (POWO, IPNI: "sepentaria").
  • Harpalyce serpentaria (Pursh) D.Don ex L.C.Beck, Bot. North. Middle States: 167 (1833).
  • Nabalus albus var. serpentaria (Pursh) Torr., State New York, Commun. 50: 150 (1841).
• Heterotypic
  • Prenanthes alba Walter, Fl. Carol.: 193 (1788), nom. illeg.
  • Prenanthes crepidinea Elliott, Sketch Bot. S. Carolina 2: 259 (1823).
  • Nabalus integrifolius Cass. in G.-F.Cuvier, Dict. Sci. Nat., ed. 2. 34: 96 (1825).
    • Nabalus fraseri var. integrifolius (Cass.) Torr. & A.Gray, Fl. N. Amer. 2: 481 (1843).
    • Prenanthes integrifolia (Cass.) Small in unknown publication.
  • Nabalus trilobatus Cass. in G.-F.Cuvier, Dict. Sci. Nat., ed. 2. 34: 95 (1825).
  • Nabalus fraseri DC., Prodr. 7: 241 (1838).
  • Narbalia latifolia Raf., New Fl. 4: 84 (1838).
  • Nabalus serpentaria var. laevis DC., Prodr. 7: 241 (1838).
  • Harpalyce rubicunda D.Don in R.Sweet, Hort. Brit., ed. 3: 417 (1839), pro syn.
  • Prenanthes fraseri D.Dietr., Syn. Plant. 4: 1309 (1847).
  • Nabalus serpentaria var. integrifolius Britton in N.L.Britton & A.Brown, Ill. Fl. N. U.S. 3: 289 (1898).
  • Prenanthes serpentaria f. simplicifolia Fernald, Rhodora 44: 478 (1942).

Distribution

Native distribution areas:

Continental: Northern America Regional: Northeastern U.S.A. Connecticut, Massachusetts, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, West Virginia. Regional: Southeastern U.S.A. Alabama, Delaware, Florida, Georgia, Kentucky, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Hooker, W.J. 1829–1834. Flora Boreali-Americana, or, the botany of the northern parts of British America. Vol. 1. 351 pp. London, H.G. Bohn. BHL Reference page. 

Links

• Govaerts, R. et al. 2026. Nabalus serpentaria in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 Apr 21. Reference page. 
• Tropicos.org 2026. Nabalus serpentaria. Missouri Botanical Garden. Published online. Accessed: 21 Apr 2026. Reference page.
• International Plant Names Index. 2026. Nabalus serpentaria. Published online. Accessed: 21 Apr 2026. Reference page.
• Hassler, M. 2026. World Plants. Synonymic Checklist and Distribution of the World Flora. . Nabalus serpentaria. Accessed: 21 Apr 2026. Reference page.  ["serpentarius"]

Vernacular names

• English: Butterweed

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