Bidens mitisSherff

smallfruit beggarticks

WFO wfo-0000118272 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Bidens mitis, photographed by Leila Dasher
fig. a Leila Dasher, CC BY 4.0 / 2022-05-15 / obs. 198368955

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 15 botanical countries

Regions where Bidens mitis is native: Alabama, Arkansas, Delaware, Florida, Georgia, Louisiana, Maryland, Mississippi, Missouri, New Jersey, North Carolina, South Carolina, Tennessee, Texas, Virginia AlabamaArkansasFloridaGeorgiaLouisianaMarylandMississippiMissouriNew JerseyNorth CarolinaSouth CarolinaTennesseeTexasVirginia Delaware
Native distribution of Bidens mitis, 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
Arkansas ARK
Delaware DEL
Florida FLA
Georgia GEO
Louisiana LOU
Maryland MRY
Mississippi MSI
Missouri MSO
New Jersey NWJ
North Carolina NCA
South Carolina SCA
Tennessee TEN
Texas TEX
Virginia VRG

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.

Flowering 193 in flower of 196 examined

Proportion of examined Bidens mitis in flower, by month
Month In flower Examined Share 95% interval
Jan 8 8 100% 68% to 100%
Feb 7 7 100% 65% to 100%
Mar 5 5 100% 57% to 100%
Apr 9 9 100% 70% to 100%
May 12 13 92% 67% to 99%
Jun 4 4 too few examined
Jul 11 12 92% 65% to 99%
Aug 3 3 too few examined
Sep 18 18 100% 82% to 100%
Oct 54 54 100% 93% to 100%
Nov 44 45 98% 88% to 100%
Dec 18 18 100% 82% to 100%

Peak flowering in Jan. Each bar is the share of Bidens mitis observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 193 of 196 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 2 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 11 synonyms

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.

  • Bidens aurea var. incisa Torr. & A.Gray
  • Bidens aurea var. leptophylla Torr. & A.Gray
  • Bidens aurea var. subintegra Torr. & A.Gray
  • Bidens mitis var. leptophylla (Nutt.) Small
  • Bidens mitis var. mitis
  • Coreopsis ambigua Nutt.
  • Coreopsis arguta Pursh
  • Coreopsis cuspidata Bertol.
  • Coreopsis heterophylla Bertol.
  • Coreopsis jasminifolia Bertol.
  • Coreopsis mitis Michx.

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.