Ipomoea parasitica

Plate 1 figs. a–h · 8 separate observations

Ipomoea parasitica, photographed by Haneesh K M — fig. b Haneesh K M, CC0 1.0 / obs. 162628688

Ipomoea parasitica, photographed by Jake Rehage — fig. e Jake Rehage, CC0 1.0 / obs. 107755453

Ipomoea parasitica, photographed by T R Shankar Raman — fig. f T R Shankar Raman, CC BY 4.0 / obs. 105766403

Ipomoea parasitica, photographed by adel-fridus — fig. h adel-fridus, CC0 1.0 / obs. 56963721

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 19 botanical countries

Native distribution of Ipomoea parasitica, 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
Bolivia	BOL	SOUTHERN AMERICA
Brazil Northeast	BZE
Brazil Southeast	BZL
Brazil West-Central	BZC
Colombia	CLM
Costa Rica	COS
El Salvador	ELS
Guatemala	GUA
Honduras	HON
Nicaragua	NIC
Panamá	PAN
Peru	PER
Venezuela	VEN
Mexico Central	MXC	NORTHERN AMERICA
Mexico Gulf	MXG
Mexico Northeast	MXE
Mexico Northwest	MXN
Mexico Southeast	MXT
Mexico Southwest	MXS

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 50 in flower of 53 examined

80%

100%

83%

Proportion of examined Ipomoea parasitica in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	4	4	too few examined
Feb	1	1	too few examined
Mar	3	3	too few examined
Apr	1	1	too few examined
May	4	5	80%	38% to 96%
Jun	1	1	too few examined
Jul	1	1	too few examined
Aug	1	1	too few examined
Sep	3	4	too few examined
Oct	18	18	100%	82% to 100%
Nov	8	8	100%	68% to 100%
Dec	5	6	83%	44% to 97%

Peak flowering in Oct. Each bar is the share of Ipomoea parasitica 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. 50 of 53 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 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 4 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.

Convolvulus circinnatus Roem. & Schult.
Convolvulus parasiticus Kunth
Ipomoea perlonga B.L.Rob.
Pharbitis parasitica (Kunth) V.M.Badillo

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.
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.