Aristolochia odoratissima (fragrant dutchman's pipe)

Plate 1 figs. a–h · 8 separate observations

Aristolochia odoratissima, photographed by Andrés Ramírez-Barrera — fig. a Andrés Ramírez-Barrera, CC BY 4.0 / 2021-07-04 / obs. 141787441

Aristolochia odoratissima, photographed by Danna Lizeth Guevara Prieto — fig. c Danna Lizeth Guevara Prieto, CC BY 4.0 / obs. 26880814

Aristolochia odoratissima, photographed by Ramon and Suzanne Vargas — fig. d Ramon and Suzanne Vargas, CC BY-SA 4.0 / obs. 14591744

Aristolochia odoratissima, photographed by Arturo Castro Castro — fig. e Arturo Castro Castro, CC BY 4.0 / obs. 68218871

Aristolochia odoratissima, photographed by Vincent A. Vos — fig. f Vincent A. Vos, CC BY 4.0 / obs. 110196858

Aristolochia odoratissima, photographed by Alfredo F. Fuentes Claros — fig. g Alfredo F. Fuentes Claros, CC0 1.0 / obs. 58410119

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.

The specimen a real sheet, in a real collection

Herbarium: Smithsonian, US National Herbarium
Accession: US 756323
Filed as: Aristolochia odoratissima L.
Det. by: Pfeifer, H. W.
Collected: N. Britton & J. A. Shafer 1913-02-05
Origin: VI
The sheet: View the digitised specimen (CC0 1.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 21 botanical countries

Native distribution of Aristolochia odoratissima, 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
Belize	BLZ
Bolivia	BOL
Brazil North	BZN
Brazil Northeast	BZE
Brazil South	BZS
Brazil Southeast	BZL
Brazil West-Central	BZC
Colombia	CLM
Costa Rica	COS
Ecuador	ECU
Guatemala	GUA
Honduras	HON
Nicaragua	NIC
Panamá	PAN
Paraguay	PAR
Peru	PER
Venezuela	VEN
Mexico Gulf	MXG	NORTHERN AMERICA
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.

Where it actually grows measured, from 85 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	14.1 °C	19.9 °C	23.5 °C
Warmest month, mean daily high	28.9 °C	31.2 °C	33.1 °C
Annual rainfall	1,269 mm	1,734 mm	4,781 mm
Rainfall in the driest quarter	17 mm	125 mm	367 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 85 research-grade observations of Aristolochia odoratissima 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 24 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.

Aristolochia aurantiaca Duch.
Aristolochia cordata L.
Aristolochia glaziovii Mast.
Aristolochia hassleriana var. guaranitica Chodat
Aristolochia macropoda Duch.
Aristolochia martiniana Standl.
Aristolochia moschata Wedd. ex Duch.
Aristolochia odorata Aikman
Aristolochia odoratissima f. brasiliensis Hassl.
Aristolochia odoratissima f. paraguariensis Hassl.
Aristolochia odoratissima var. genuina Hassl.
Aristolochia odoratissima var. glaziovii (Mast.) Hassl.
Aristolochia odoratissima var. grandiflora Duch.
Aristolochia odoratissima var. guaranitica (Chodat) Hassl.
Aristolochia odoratissima var. hastata Hassl.
Aristolochia odoratissima var. pandurata (Jacq.) Hoehne
Aristolochia ottonis Klotzsch ex Duch.
Aristolochia pandurata Jacq.
Aristolochia pandurata var. warscewiczii Duch.
Aristolochia panduriformis Willd.
Aristolochia picta H.Karst.
Aristolochia rimbachii O.C.Schmidt
Howardia pandurata (Jacq.) Klotzsch
Howardia warszewiczii Klotzsch ex Duch.

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.