Distimake macrocalyx(Ruiz & Pav.) A.R.Simões & Staples

WFO wfo-0001424461 Accepted WFO 2026-06 3 photographs CC0 / CC BY

Plate 1 figs. a–c · 2 observations

This species has been photographed under an open licence only 2 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Distimake macrocalyx, photographed by Naturalist Tours
fig. a Naturalist Tours, CC0 1.0 / 2022-05-11 / obs. 198767722
Distimake macrocalyx, photographed by Naturalist Tours
fig. b Naturalist Tours, CC0 1.0 / obs. 198767708
Distimake macrocalyx, photographed by Diogo Luiz
fig. c Diogo Luiz, CC BY 4.0 / obs. 126733656

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 18 botanical countries

Regions where Distimake macrocalyx is native: Argentina Northeast, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Dominican Republic, Ecuador, French Guiana, Guyana, Nicaragua, Paraguay, Peru, Suriname, Trinidad-Tobago, Venezuela Argentina NortheastBoliviaBrazil NorthBrazil NortheastBrazil SouthBrazil SoutheastBrazil West-CentralColombiaDominican RepublicEcuadorFrench GuianaGuyanaNicaraguaParaguayPeruSurinameTrinidad-TobagoVenezuela
Native distribution of Distimake macrocalyx, 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.
RegionTDWG codeContinent
Argentina Northeast AGE SOUTHERN AMERICA
Bolivia BOL
Brazil North BZN
Brazil Northeast BZE
Brazil South BZS
Brazil Southeast BZL
Brazil West-Central BZC
Colombia CLM
Dominican Republic DOM
Ecuador ECU
French Guiana FRG
Guyana GUY
Nicaragua NIC
Paraguay PAR
Peru PER
Suriname SUR
Trinidad-Tobago TRT
Venezuela VEN

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 119 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 12.4 °C 21.9 °C 23.5 °C
Warmest month, mean daily high 26.4 °C 30.7 °C 33.4 °C
Annual rainfall 1,191 mm 2,327 mm 3,547 mm
Rainfall in the driest quarter 29 mm 217 mm 331 mm

It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 119 research-grade observations of Distimake macrocalyx 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 15 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.

  • Batatas glabra (Choisy) Benth.
  • Convolvulus contortus Vell.
  • Convolvulus cordatifolius Vell.
  • Convolvulus glaber Aubl.
  • Convolvulus macrocalyx Ruiz & Pav.
  • Convolvulus pentaphyllus Salzm. ex Meisn.
  • Distimake glaber Raf.
  • Ipomoea glabra Choisy
  • Ipomoea glabra var. septenata (Choisy) Meisn.
  • Ipomoea hostmannii Meisn.
  • Ipomoea macrocalyx (Ruiz & Pav.) Choisy
  • Ipomoea septenata Choisy
  • Merremia glabra (Choisy) Hallier f.
  • Merremia glabra var. pubescens Ooststr. ex J.F.Macbr.
  • Merremia macrocalyx (Ruiz & Pav.) O'Donell

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. 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.