Stenanthium gramineum(Ker Gawl.) Morong

eastern featherbells

WFO wfo-0000738397 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Stenanthium gramineum, photographed by Jackie Miller
fig. a Jackie Miller, CC0 1.0 / 2021-09-12 / obs. 156994142

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 20 botanical countries

Regions where Stenanthium gramineum is native: Alabama, Arkansas, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maryland, Michigan, Missouri, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia AlabamaArkansasFloridaGeorgiaIllinoisIndianaKentuckyLouisianaMarylandMichiganMissouriNorth CarolinaOhioPennsylvaniaSouth CarolinaTennesseeTexasVirginiaWest Virginia District of Columbia
Native distribution of Stenanthium gramineum, 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
District of Columbia WDC
Florida FLA
Georgia GEO
Illinois ILL
Indiana INI
Kentucky KTY
Louisiana LOU
Maryland MRY
Michigan MIC
Missouri MSO
North Carolina NCA
Ohio OHI
Pennsylvania PEN
South Carolina SCA
Tennessee TEN
Texas TEX
Virginia VRG
West Virginia WVA

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 74 in flower of 91 examined

Proportion of examined Stenanthium gramineum in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 1 too few examined
Apr 0 3 too few examined
May 1 5 20% 4% to 62%
Jun 16 20 80% 58% to 92%
Jul 13 15 87% 62% to 96%
Aug 32 32 100% 89% to 100%
Sep 10 10 100% 72% to 100%
Oct 2 5 40% 12% to 77%
Nov 0 0 too few examined
Dec 0 0 too few examined

Peak flowering in Aug. Each bar is the share of Stenanthium gramineum 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. 74 of 91 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 6 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 13 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.

  • Anepsa carinata Raf.
  • Anepsa graminifolia Raf.
  • Anepsa spicata Raf.
  • Helonias graminea Ker Gawl.
  • Stenanthium angustifolium (Pursh) Kunth
  • Stenanthium gramineum f. robustum (S.Watson) E.J.Palmer & Steyerm.
  • Stenanthium gramineum var. gramineum
  • Stenanthium gramineum var. micranthum Fernald
  • Stenanthium gramineum var. robustum (S.Watson) Fernald
  • Stenanthium gramineum var. typicum Fernald
  • Stenanthium robustum S.Watson
  • Veratrum angustifolium Pursh
  • Xerophyllum gramineum (Ker Gawl.) Nutt.

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.