Neoorthocaulis attenuatus(Mart.) L.Söderstr., De Roo & Hedd.

WFO wfo-0001035801 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Neoorthocaulis attenuatus, photographed by George Greiff
fig. a George Greiff, CC BY 4.0 / 2021-09-12 / obs. 158577376
Neoorthocaulis attenuatus, photographed by Étienne Lacroix-Carignan
fig. b Étienne Lacroix-Carignan, CC0 1.0 / obs. 28026416
Neoorthocaulis attenuatus, photographed by Helen Waterman
fig. c Helen Waterman, CC BY 4.0 / obs. 195700620
Neoorthocaulis attenuatus, photographed by Helen Waterman
fig. d Helen Waterman, CC BY 4.0 / obs. 118144544
Neoorthocaulis attenuatus, photographed by Micki Colbeck
fig. e Micki Colbeck, CC BY 4.0 / obs. 39206530
Neoorthocaulis attenuatus, photographed by Helen Waterman
fig. f Helen Waterman, CC BY 4.0 / obs. 126406158
Neoorthocaulis attenuatus, photographed by Étienne Lacroix-Carignan
fig. g Étienne Lacroix-Carignan, CC0 1.0 / obs. 99579247
Neoorthocaulis attenuatus, photographed by Helen Waterman
fig. h Helen Waterman, CC BY 4.0 / obs. 192785776

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 121 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -14.8 °C -5.1 °C 1.6 °C
Warmest month, mean daily high 17.0 °C 21.6 °C 23.9 °C
Annual rainfall 696 mm 1,001 mm 1,918 mm
Rainfall in the driest quarter 137 mm 178 mm 375 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 121 research-grade observations of Neoorthocaulis attenuatus 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 33 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.

  • Barbilophozia attenuata (Mart.) Loeske
  • Barbilophozia gracilis (Schleich. ex DC.) Müll.Frib.
  • Jungermannia attenuata (Mart.) Lindenb.
  • Jungermannia attenuata var. attenuata
  • Jungermannia attenuata var. cavifolia Lindb. ex Arnell
  • Jungermannia attenuata var. fusca Huebener
  • Jungermannia attenuata var. gracilis (Schleich. ex DC.) Lindenb.
  • Jungermannia attenuata var. gradata Desm.
  • Jungermannia attenuata var. laetevirens Huebener
  • Jungermannia barbata f. gracilis (Schleich. ex DC.) Nees
  • Jungermannia barbata f. gracilis Nees
  • Jungermannia barbata var. attenuata (Mart.) Nees
  • Jungermannia barbata var. gracilis Schleich. ex DC.
  • Jungermannia barbata var. minor Hook.
  • Jungermannia gracilis (Schleich. ex DC.) Lindb.
  • Jungermannia gracilis var. eflagellis Schiffn.
  • Jungermannia quinquedentata f. attenuata Mart.
  • Jungermannia quinquedentata var. attenuata (Mart.) Steud.
  • Jungermannia quinquedentata var. gracilis Huebener
  • Jungermannia quinquedentata var. minima Wahlenb.
  • Jungermannia trifida Steph.
  • Lophozia attenuata (Mart.) Dumort.
  • Lophozia attenuata var. eflagellifera Jørg.
  • Lophozia barbata subsp. gracilis (Schleich. ex DC.) Boulay

and 9 more.

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.