Marchesinia mackaii(Hook.) Gray

WFO wfo-0001206980 Accepted WFO 2026-06 6 photographs CC BY

Plate 1 figs. a–f · 2 observations

This species has been photographed under an open licence only 2 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.

Marchesinia mackaii, photographed by Christian Berg
fig. a Christian Berg, CC BY 4.0 / 2022-01-01 / obs. 176142725
Marchesinia mackaii, photographed by George Greiff
fig. b George Greiff, CC BY 4.0 / obs. 64533609
Marchesinia mackaii, photographed by Christian Berg
fig. c Christian Berg, CC BY 4.0 / obs. 176142865
Marchesinia mackaii, photographed by George Greiff
fig. d George Greiff, CC BY 4.0 / obs. 64533620
Marchesinia mackaii, photographed by Christian Berg
fig. e Christian Berg, CC BY 4.0 / obs. 176143437
Marchesinia mackaii, photographed by Christian Berg
fig. f Christian Berg, CC BY 4.0 / obs. 176143417

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 41 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 0.3 °C 3.2 °C 13.4 °C
Warmest month, mean daily high 15.6 °C 18.2 °C 21.8 °C
Annual rainfall 707 mm 1,296 mm 2,175 mm
Rainfall in the driest quarter 12 mm 238 mm 329 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 41 research-grade observations of Marchesinia mackaii 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 13 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.

  • Homalolejeunea mackaii (Hook.) Steph.
  • Jungermannia mackaii Hook.
  • Lejeunea mackaii (Hook.) Spreng.
  • Lejeunea mackaii f. italica (De Not.) C.Massal.
  • Lejeunea mackaii f. mackaii
  • Marchesinia mackaii f. italica (De Not.) Schiffn.
  • Marchesinia mackaii f. mackaii
  • Marchesinia mackaii var. italica (De Not.) Trevis.
  • Marchesinia mackaii var. mackaii
  • Phragmicoma mackaii (Hook.) Dumort.
  • Phragmicoma mackaii var. cornubica Rabenh.
  • Phragmicoma mackaii var. italica De Not.
  • Phragmicoma mackaii var. mackaii

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.