Amaranthus deflexus (largefruit amaranth)

Plate 1 figs. a–h · 8 separate observations

Amaranthus deflexus, photographed by Julia Palmer — fig. a Julia Palmer, CC BY-SA 4.0 / 2022-05-22 / obs. 199548200

Amaranthus deflexus, photographed by Dave Richardson — fig. b Dave Richardson, CC BY 4.0 / obs. 197797306

Amaranthus deflexus, photographed by Jon Sullivan — fig. c Jon Sullivan, CC BY 4.0 / obs. 195557201

Amaranthus deflexus, photographed by Leon Perrie — fig. d Leon Perrie, CC BY 4.0 / obs. 177892930

Amaranthus deflexus, photographed by naturewatchwidow — fig. e naturewatchwidow, CC BY 4.0 / obs. 176106596

Amaranthus deflexus, photographed by Colin Meurk — fig. f Colin Meurk, CC BY-SA 4.0 / obs. 175492930

Amaranthus deflexus, photographed by Yves Bas — fig. h Yves Bas, CC BY 4.0 / obs. 165656034

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 8 botanical countries

Native distribution of Amaranthus deflexus, 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
Argentina Northeast	AGE	SOUTHERN AMERICA
Argentina Northwest	AGW
Argentina South	AGS
Bolivia	BOL
Chile Central	CLC
Chile North	CLN
Chile South	CLS
Uruguay	URU

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 46 in flower of 135 examined

25%

80%

29%

23%

38%

86%

31%

39%

10%

27%

43%

50%

Proportion of examined Amaranthus deflexus in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	3	12	25%	9% to 53%
Feb	4	5	80%	38% to 96%
Mar	2	7	29%	8% to 64%
Apr	3	13	23%	8% to 50%
May	3	8	38%	14% to 69%
Jun	6	7	86%	49% to 97%
Jul	5	16	31%	14% to 56%
Aug	9	23	39%	22% to 59%
Sep	2	20	10%	3% to 30%
Oct	3	11	27%	10% to 57%
Nov	3	7	43%	16% to 75%
Dec	3	6	50%	19% to 81%

Peak flowering in Jun. Each bar is the share of Amaranthus deflexus 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. 46 of 135 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 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.

Where it actually grows measured, from 2,003 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-4.4 °C	2.3 °C	10.0 °C
Warmest month, mean daily high	21.2 °C	26.6 °C	31.6 °C
Annual rainfall	385 mm	684 mm	1,937 mm
Rainfall in the driest quarter	5 mm	106 mm	209 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 2,003 research-grade observations of Amaranthus deflexus that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 14 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.

Albersia deflexa (L.) Fourr.
Albersia prostrata (Balb.) Kunth
Amarantellus argentinus Speg.
Amaranthus deflexus f. rufescens (Godr.) Thell. & Probst
Amaranthus deflexus var. rufescens (Godr.) Thell.
Amaranthus minor (Moq.) Sennen
Amaranthus perennis Bellardi
Amaranthus prostratus Balb.
Euxolus deflexus var. ascendens Moq.
Euxolus deflexus var. major Moq.
Euxolus deflexus var. minor Moq.
Euxolus deflexus var. rufescens Godr.
Galliaria prostrata (Balb.) Bubani
Glomeraria deflexa (L.) Cav.

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.