Leptodictyum riparium (streamside leptodictyum moss)

Plate 1 figs. a–h · 8 separate observations

Leptodictyum riparium, photographed by Susan Marley — fig. a Susan Marley, CC BY 4.0 / 2021-06-13 / obs. 136090438

Leptodictyum riparium, photographed by Maria — fig. b Maria, CC BY 4.0 / obs. 134066821

Leptodictyum riparium, photographed by Zihao Wang — fig. c Zihao Wang, CC BY 4.0 / obs. 106713602

Leptodictyum riparium, photographed by George Greiff — fig. e George Greiff, CC BY 4.0 / obs. 97150533

Leptodictyum riparium, photographed by Stephen James McWilliam — fig. f Stephen James McWilliam, CC0 1.0 / obs. 57294118

Leptodictyum riparium, photographed by euanmck — fig. g euanmck, CC BY 4.0 / obs. 53477617

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 247 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-12.9 °C	-1.1 °C	9.5 °C
Warmest month, mean daily high	18.9 °C	23.7 °C	31.4 °C
Annual rainfall	566 mm	863 mm	1,345 mm
Rainfall in the driest quarter	59 mm	149 mm	267 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 247 research-grade observations of Leptodictyum riparium 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 191 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.

Amblystegium afrofluitans (Müll.Hal.) Sim
Amblystegium ambiguum De Not.
Amblystegium brachypelmatum Müll.Hal.
Amblystegium brachyphyllum Cardot & Thér.
Amblystegium brevinerve Broth.
Amblystegium brevipes Cardot & Thér.
Amblystegium decipiens (Warnst.) Broth.
Amblystegium finnmarchicum C.Hartm.
Amblystegium floridanum (Renauld & Cardot) Renauld & Cardot
Amblystegium gallicum Bryhn
Amblystegium hausmannii De Not. ex Schimp.
Amblystegium laxirete Cardot & Thér.
Amblystegium leptophyllum Schimp.
Amblystegium leptophyllum var. cylindricum Buyss.
Amblystegium leptophyllum var. hausmannii (De Not. ex Schimp.) J.J.Amann
Amblystegium leptophyllum var. longifolium Röll
Amblystegium madeirense (Mitt.) A.Jaeger
Amblystegium mexicanum Cardot
Amblystegium muelleri (Müll.Hal. & Hampe) A.Jaeger
Amblystegium obtusum Grout ex Wijk, Margad. & Florsch.
Amblystegium octodiceroides Müll.Hal.
Amblystegium riparioides A.Jaeger
Amblystegium riparium (Hedw.) Schimp.
Amblystegium riparium f. bifidinervium M.F.Boiko

and 167 more.

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.

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.