Convolvulus capensis

Plate 1 figs. a–h · 8 separate observations

Convolvulus capensis, photographed by Paul Emms — fig. b Paul Emms, CC BY-SA 4.0 / obs. 170728716

Convolvulus capensis, photographed by Tony Rebelo — fig. c Tony Rebelo, CC BY-SA 4.0 / obs. 173420847

Convolvulus capensis, photographed by Dave Richardson — fig. d Dave Richardson, CC BY 4.0 / obs. 156921443

Convolvulus capensis, photographed by Nicola van Berkel — fig. e Nicola van Berkel, CC BY-SA 4.0 / obs. 59665463

Convolvulus capensis, photographed by Chris Vynbos — fig. f Chris Vynbos, CC BY-SA 4.0 / obs. 51601808

Convolvulus capensis, photographed by Brian du Preez — fig. h Brian du Preez, CC BY-SA 4.0 / obs. 33480461

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 Convolvulus capensis, 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
Cape Provinces	CPP	AFRICA

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.

Where it actually grows measured, from 138 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	3.0 °C	6.1 °C	11.1 °C
Warmest month, mean daily high	23.1 °C	29.8 °C	32.1 °C
Annual rainfall	285 mm	541 mm	935 mm
Rainfall in the driest quarter	23 mm	58 mm	135 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 138 research-grade observations of Convolvulus capensis 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.

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.

Convolvulus alceifolius Lam.
Convolvulus capensis var. bowieanus A.Meeuse
Convolvulus capensis var. capensis
Convolvulus capensis var. dissectus Hallier f.
Convolvulus capensis var. malvifolius Hallier f.
Convolvulus capensis var. natalensis Baker
Convolvulus capensis var. plicatus Baker
Convolvulus falkia Jacq.
Convolvulus inconspicuus Hallier f.
Convolvulus plicatus Desr.
Ipomoea bowieana (Rendle) Baker
Merremia bowieana Rendle
Xenostegia filiformis M.R.Almeida

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.