Aquarius subulatus(Mart. ex Schult.f.) Christenh. & Byng

WFO wfo-0001424652 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 5 observations

This species has been photographed under an open licence only 5 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.

Aquarius subulatus, photographed by Paulo Nogueira
fig. a Paulo Nogueira, CC BY 4.0 / 2022-03-25 / obs. 184462335
Aquarius subulatus, photographed by Alexis López Hernández
fig. b Alexis López Hernández, CC BY 4.0 / obs. 128742955
Aquarius subulatus, photographed by Francisco Farriols Sarabia
fig. c Francisco Farriols Sarabia, CC BY 4.0 / obs. 634387
Aquarius subulatus, photographed by Francisco Farriols Sarabia
fig. d Francisco Farriols Sarabia, CC BY 4.0 / obs. 526357
Aquarius subulatus, photographed by Tereso Hernández Morales
fig. e Tereso Hernández Morales, CC BY 4.0 / obs. 60916100
Aquarius subulatus, photographed by Alexis López Hernández
fig. f Alexis López Hernández, CC BY 4.0 / obs. 128742319
Aquarius subulatus, photographed by Tereso Hernández Morales
fig. g Tereso Hernández Morales, CC BY 4.0 / obs. 60916104
Aquarius subulatus, photographed by Tereso Hernández Morales
fig. h Tereso Hernández Morales, CC BY 4.0 / obs. 60916102

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.

Where it actually grows measured, from 37 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 11.2 °C 19.1 °C 22.9 °C
Warmest month, mean daily high 29.9 °C 34.3 °C 36.3 °C
Annual rainfall 626 mm 864 mm 1,388 mm
Rainfall in the driest quarter 6 mm 15 mm 87 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 37 research-grade observations of Aquarius subulatus 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 18 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.

  • Alisma andrieuxii Hook. & Arn.
  • Alisma intermedium Mart. ex Schult.f.
  • Alisma intermedium Mart.
  • Alisma subalatum Mart.
  • Alisma subalatum var. majus Schult.f.
  • Alisma subalatum var. medium Schult.f.
  • Alisma subalatum var. minus Schult.f.
  • Echinodorus andrieuxii (Hook. & Arn.) Small
  • Echinodorus andrieuxii var. andrieuxii
  • Echinodorus andrieuxii var. longistylus (Buchenau) Rataj
  • Echinodorus ellipticus var. ovatus Micheli
  • Echinodorus intermedius Griseb.
  • Echinodorus longistylus Buchenau
  • Echinodorus martii Micheli
  • Echinodorus subalatus (Mart. ex Schult.f.) Griseb.
  • Echinodorus subalatus subsp. andrieuxii (Hook. & Arn.) R.R.Haynes & Holm-Niels.
  • Echinodorus subalatus var. minor F.J.Mey.
  • Sagittaria palaefolia var. subalata (Mart.) Kuntze

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.

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. It has no native range either: Kew's checklist does not cover this taxon.