Orthotrichum stramineumHornsch. ex Brid.

orthotrichum moss

WFO wfo-0001189587 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Orthotrichum stramineum, photographed by Susan Marley
fig. a Susan Marley, CC BY 4.0 / 2022-05-01 / obs. 194273930

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
The New York Botanical Garden
Accession
04450175
Filed as
Orthotrichum stramineum Hornsch.
Det. by
not recorded on this sheet
Collected
not recorded
Origin
not recorded
The sheet
View the digitised specimen (CC BY 4.0)

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.

Where it actually grows measured, from 165 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -7.8 °C -2.5 °C 2.2 °C
Warmest month, mean daily high 17.3 °C 20.9 °C 24.2 °C
Annual rainfall 605 mm 865 mm 1,668 mm
Rainfall in the driest quarter 98 mm 167 mm 326 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 165 research-grade observations of Orthotrichum stramineum 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 17 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.

  • Dorcadion stramineum (Hornsch. ex Brid.) Lindb.
  • Orthotrichum notabile Lewinsky
  • Orthotrichum patens var. stramineum (Hornsch. ex Brid.) Hampe
  • Orthotrichum praenubilum Stirt.
  • Orthotrichum pseudostramineum Dism.
  • Orthotrichum rogeri var. defluens (Venturi) Venturi
  • Orthotrichum stramineum subsp. stramineum
  • Orthotrichum stramineum var. commune Venturi
  • Orthotrichum stramineum var. debilis Grönvall
  • Orthotrichum stramineum var. defluens Venturi
  • Orthotrichum stramineum var. firmum Venturi
  • Orthotrichum stramineum var. intermedium Venturi
  • Orthotrichum stramineum var. intermedium Warnst.
  • Orthotrichum stramineum var. tenue Grönvall
  • Orthotrichum stramineum var. vexabile Limpr.
  • Orthotrichum umbonatum Plaubel ex Brid.
  • Orthotrichum vexabile (Limpr.) W.Krieg.

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. 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.