Jasminocereus thouarsii (Cactus)

Plate 1 figs. a–h · 8 separate observations

Jasminocereus thouarsii, photographed by Patrick Cox — fig. a Patrick Cox, CC BY 4.0 / 2021-06-02 / obs. 139419250

Jasminocereus thouarsii, photographed by Juan Carlos Caicedo Hernández — fig. c Juan Carlos Caicedo Hernández, CC BY 4.0 / obs. 125621515

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 1 botanical country

Native distribution of Jasminocereus thouarsii, 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.

Region	TDWG code	Continent
Galápagos	GAL	SOUTHERN AMERICA

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 109 in flower of 2,114 examined

12%

31%

37%

13%

Proportion of examined Jasminocereus thouarsii in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	15	124	12%	7% to 19%
Feb	19	61	31%	21% to 44%
Mar	45	123	37%	29% to 45%
Apr	9	71	13%	7% to 22%
May	8	135	6%	3% to 11%
Jun	2	96	2%	1% to 7%
Jul	0	112	0%	0% to 3%
Aug	2	1014	0%	0% to 1%
Sep	0	72	0%	0% to 5%
Oct	0	62	0%	0% to 6%
Nov	1	80	1%	0% to 7%
Dec	8	164	5%	2% to 9%

Peak flowering in Mar. Each bar is the share of Jasminocereus thouarsii 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. 109 of 2,114 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.

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.

Brachycereus thouarsii (F.A.C.Weber) Britton & Rose
Cereus galapagensis F.A.C.Weber
Cereus sclerocarpus K.Schum. ex B.L.Rob.
Cereus thouarsii F.A.C.Weber
Jasminocereus galapagensis (F.A.C.Weber) Britton & Rose
Jasminocereus howellii E.Y.Dawson
Jasminocereus howellii var. delicatus E.Y.Dawson
Jasminocereus sclerocarpus (K.Schum.) Backeb.
Jasminocereus thouarsii subsp. howellii (E.Y.Dawson) Guiggi
Jasminocereus thouarsii var. chathamensis E.Y.Dawson
Jasminocereus thouarsii var. delicatus (E.Y.Dawson) E.F.Anderson & Walk.
Jasminocereus thouarsii var. sclerocarpus (K.Schum.) E.F.Anderson & Walk.
Jasminocereus thouarsii var. thouarsii

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.