Aristida tuberculosaNutt.

seaside threeawn

WFO wfo-0000849496 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Aristida tuberculosa, photographed by Ethan Rose
fig. a Ethan Rose, CC BY 4.0 / 2021-10-23 / obs. 165392617
Aristida tuberculosa, photographed by Zihao Wang
fig. b Zihao Wang, CC BY 4.0 / obs. 25915510
Aristida tuberculosa, photographed by aarongunnar
fig. c aarongunnar, CC BY 4.0 / obs. 31245749
Aristida tuberculosa, photographed by Becky Dill
fig. d Becky Dill, CC0 1.0 / obs. 172378779
Aristida tuberculosa, photographed by Becky Dill
fig. e Becky Dill, CC0 1.0 / obs. 172346289
Aristida tuberculosa, photographed by Becky Dill
fig. f Becky Dill, CC0 1.0 / obs. 172107827
Aristida tuberculosa, photographed by Scott Ward
fig. g Scott Ward, CC BY 4.0 / obs. 169631406
Aristida tuberculosa, photographed by John Kees
fig. h John Kees, CC0 1.0 / obs. 165025621

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 22 botanical countries

Regions where Aristida tuberculosa is native: Alabama, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, New Hampshire, New Jersey, New York, North Carolina, South Carolina, Virginia, Wisconsin AlabamaConnecticutFloridaGeorgiaIllinoisIndianaIowaKentuckyLouisianaMarylandMassachusettsMichiganMinnesotaMississippiNew HampshireNew JerseyNew YorkNorth CarolinaSouth CarolinaVirginiaWisconsin Delaware
Native distribution of Aristida tuberculosa, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Alabama ALA NORTHERN AMERICA
Connecticut CNT
Delaware DEL
Florida FLA
Georgia GEO
Illinois ILL
Indiana INI
Iowa IOW
Kentucky KTY
Louisiana LOU
Maryland MRY
Massachusetts MAS
Michigan MIC
Minnesota MIN
Mississippi MSI
New Hampshire NWH
New Jersey NWJ
New York NWY
North Carolina NCA
South Carolina SCA
Virginia VRG
Wisconsin WIS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 1 synonym

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Chaetaria tuberculosa (Nutt.) Schult.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.