Pterolepis glomerata(Rottb.) Miq.

false meadowbeauty

WFO wfo-0001080634 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Pterolepis glomerata, photographed by Don Loarie
fig. a Don Loarie, CC BY 4.0 / 2022-05-20 / obs. 203244259

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 17 botanical countries

Regions where Pterolepis glomerata is native: Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Dominican Republic, French Guiana, Guyana, Leeward Is., Paraguay, Puerto Rico, Suriname, Trinidad-Tobago, Venezuela, Windward Is. BoliviaBrazil NorthBrazil NortheastBrazil SouthBrazil SoutheastBrazil West-CentralColombiaDominican RepublicFrench GuianaGuyanaParaguayPuerto RicoSurinameTrinidad-TobagoVenezuela Leeward Is.Windward Is.
Native distribution of Pterolepis glomerata, 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
Bolivia BOL SOUTHERN AMERICA
Brazil North BZN
Brazil Northeast BZE
Brazil South BZS
Brazil Southeast BZL
Brazil West-Central BZC
Colombia CLM
Dominican Republic DOM
French Guiana FRG
Guyana GUY
Leeward Is. LEE
Paraguay PAR
Puerto Rico PUE
Suriname SUR
Trinidad-Tobago TRT
Venezuela VEN
Windward Is. WIN

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 39 in flower of 40 examined

Proportion of examined Pterolepis glomerata in flower, by month
Month In flower Examined Share 95% interval
Jan 2 2 too few examined
Feb 3 3 too few examined
Mar 3 4 too few examined
Apr 1 1 too few examined
May 3 3 too few examined
Jun 4 4 too few examined
Jul 3 3 too few examined
Aug 2 2 too few examined
Sep 6 6 100% 61% to 100%
Oct 1 1 too few examined
Nov 6 6 100% 61% to 100%
Dec 5 5 100% 57% to 100%

Peak flowering in Sep. Each bar is the share of Pterolepis glomerata 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. 39 of 40 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 9 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 36 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.

  • Arthrostema angusturense DC.
  • Arthrostema capitatum Naudin
  • Arthrostema salzmannii Naudin
  • Arthrostemma angusturense DC.
  • Arthrostemma angusturense (Rich.) Naudin
  • Arthrostemma brachyandrum Cham.
  • Arthrostemma glomeratum (Rottb.) Cham.
  • Chaetogastra callichaeta Benth.
  • Chaetogastra glomerata (Rottb.) Benth.
  • Chaetogastra sherardioides DC.
  • Osbeckia glomerata (Rottb.) DC.
  • Osbeckia glomerata var. albiflora DC.
  • Osbeckia maritima A.St.-Hil.
  • Osbeckia sipaneoides DC.
  • Pterolepis capitata Miq.
  • Pterolepis glomerata var. angustifolia Cogn.
  • Pterolepis glomerata var. angusturensis (Humb. & Bonpl.) Cogn.
  • Pterolepis glomerata var. brachyandra (Cham.) Cogn.
  • Pterolepis glomerata var. glaziovii Cogn.
  • Pterolepis glomerata var. longifolia Cogn.
  • Pterolepis glomerata var. martiana Cogn.
  • Pterolepis glomerata var. microphylla Cogn.
  • Pterolepis glomerata var. peruviana Cogn.
  • Pterolepis glomerata var. saldanhaei Cogn.

and 12 more.

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.