Sidastrum paniculatum(L.) Fryxell

panicled sandmallow

WFO wfo-0000505497 Accepted WFO 2026-06 4 photographs CC0

Plate 1 figs. a–d · 3 observations

This species has been photographed under an open licence only 3 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Sidastrum paniculatum, photographed by Ruth Gutiérrez Oliveros
fig. a Ruth Gutiérrez Oliveros, CC0 1.0 / 2021-07-28 / obs. 147178536
Sidastrum paniculatum, photographed by Ruth Gutiérrez Oliveros
fig. b Ruth Gutiérrez Oliveros, CC0 1.0 / obs. 147176179
Sidastrum paniculatum, photographed by Ruth Gutiérrez Oliveros
fig. c Ruth Gutiérrez Oliveros, CC0 1.0 / obs. 131322903
Sidastrum paniculatum, photographed by Ruth Gutiérrez Oliveros
fig. d Ruth Gutiérrez Oliveros, CC0 1.0 / obs. 131322937

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 23 botanical countries

Regions where Sidastrum paniculatum is native: Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Texas, Argentina Northeast, Belize, Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Cuba, Guatemala, Honduras, Jamaica, Panamá, Paraguay, Peru, Venezuela Mexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestTexasArgentina NortheastBelizeBoliviaBrazil NortheastBrazil SouthBrazil SoutheastBrazil West-CentralColombiaCubaGuatemalaHondurasJamaicaPanamáParaguayPeruVenezuela
Native distribution of Sidastrum paniculatum, 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.
RegionTDWG codeContinent
Argentina Northeast AGE SOUTHERN AMERICA
Belize BLZ
Bolivia BOL
Brazil Northeast BZE
Brazil South BZS
Brazil Southeast BZL
Brazil West-Central BZC
Colombia CLM
Cuba CUB
Guatemala GUA
Honduras HON
Jamaica JAM
Panamá PAN
Paraguay PAR
Peru PER
Venezuela VEN
Mexico Central MXC NORTHERN AMERICA
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Texas TEX

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 71 in flower of 79 examined

Peak flowering in Jan. Each bar is the share of Sidastrum paniculatum 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. 71 of 79 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 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 10 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.

  • Sida alpestris A.St.-Hil.
  • Sida atrosanguinea Jacq.
  • Sida capillaris Cav.
  • Sida floribunda Kunth
  • Sida humboldtii D.Dietr.
  • Sida paniculata L.
  • Sida paniculata var. floribunda (Kunth) Triana & Planch.
  • Sida paniculata var. normalis Kuntze
  • Sida paniculata var. rufescens Baker f.
  • Sida schweinfurthii Baker f.

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.