Acalypha monostachya (round copperleaf)

Plate 1 figs. a–h · 8 separate observations

Acalypha monostachya, photographed by Michelle W. （鍾偉瑋） — fig. a Michelle W. （鍾偉瑋）, CC BY 4.0 / 2022-06-03 / obs. 204331211

Acalypha monostachya, photographed by Cleveland Powell — fig. b Cleveland Powell, CC BY 4.0 / obs. 188154966

Acalypha monostachya, photographed by Reid Hardin — fig. c Reid Hardin, CC BY 4.0 / obs. 140468289

Acalypha monostachya, photographed by Víctor Alonso Hernández González — fig. d Víctor Alonso Hernández González, CC BY 4.0 / obs. 131111181

Acalypha monostachya, photographed by Oscar C. González Martínez — fig. e Oscar C. González Martínez, CC BY-SA 4.0 / obs. 100784682

Acalypha monostachya, photographed by Eric Knight — fig. f Eric Knight, CC BY 4.0 / obs. 64164167

Acalypha monostachya, photographed by Rafael Torres — fig. g Rafael Torres, CC BY-SA 4.0 / obs. 43353725

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 5 botanical countries

Native distribution of Acalypha monostachya, 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.

Region	TDWG code	Continent
Mexico Central	MXC	NORTHERN AMERICA
Mexico Northeast	MXE
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 153 in flower of 161 examined

100%

88%

100%

96%

93%

92%

100%

73%

Proportion of examined Acalypha monostachya in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	8	8	100%	68% to 100%
Feb	3	3	too few examined
Mar	14	16	88%	64% to 97%
Apr	45	45	100%	92% to 100%
May	24	25	96%	80% to 99%
Jun	13	14	93%	69% to 99%
Jul	11	12	92%	65% to 99%
Aug	4	4	too few examined
Sep	17	17	100%	82% to 100%
Oct	8	11	73%	43% to 90%
Nov	3	3	too few examined
Dec	3	3	too few examined

Peak flowering in Jan. Each bar is the share of Acalypha monostachya 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. 153 of 161 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 7 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.

Acalypha depressa Sessé & Moc.
Acalypha hederacea Torr.
Acalypha hederacea var. genuina Müll.Arg.
Acalypha hederacea var. oligodonta Müll.Arg.
Acalypha hederacea var. orbicularis Müll.Arg.
Ricinocarpus hederaceus Kuntze
Ricinocarpus monostachyus Kuntze

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
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.