Melampyrum roseumMaxim.

WFO wfo-0001138714 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Melampyrum roseum, photographed by Nina Filippova
fig. a Nina Filippova, CC BY 4.0 / 2021-08-29 / obs. 153898124
Melampyrum roseum, photographed by Nina Filippova
fig. b Nina Filippova, CC BY 4.0 / obs. 153898622
Melampyrum roseum, photographed by Nina Filippova
fig. c Nina Filippova, CC BY 4.0 / obs. 153453712
Melampyrum roseum, photographed by Nina Filippova
fig. d Nina Filippova, CC BY 4.0 / obs. 152916153
Melampyrum roseum, photographed by Nina Filippova
fig. e Nina Filippova, CC BY 4.0 / obs. 152921372
Melampyrum roseum, photographed by Eugene Popov
fig. f Eugene Popov, CC BY 4.0 / obs. 92771680
Melampyrum roseum, photographed by Repina Tatyana
fig. g Repina Tatyana, CC BY 4.0 / obs. 51108460
Melampyrum roseum, photographed by Repina Tatyana
fig. h Repina Tatyana, CC BY 4.0 / obs. 46335105

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.

Native range 11 botanical countries

Regions where Melampyrum roseum is native: Amur, China North-Central, China South-Central, China Southeast, Inner Mongolia, Japan, Khabarovsk, Korea, Manchuria, Primorye, Taiwan AmurChina North-CentralChina South-CentralChina SoutheastInner MongoliaJapanKhabarovskManchuriaPrimoryeTaiwan Korea
Native distribution of Melampyrum roseum, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Amur AMU ASIA-TEMPERATE
China North-Central CHN
China South-Central CHC
China Southeast CHS
Inner Mongolia CHI
Japan JAP
Khabarovsk KHA
Korea KOR
Manchuria CHM
Primorye PRM
Taiwan TAI

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 173 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -22.1 °C -13.4 °C 5.6 °C
Warmest month, mean daily high 21.3 °C 24.9 °C 28.0 °C
Annual rainfall 553 mm 847 mm 2,880 mm
Rainfall in the driest quarter 24 mm 50 mm 328 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 173 research-grade observations of Melampyrum roseum 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 26 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.

  • Melampyrum aristatum (Beauverd) Soó
  • Melampyrum ciliare Miq.
  • Melampyrum ciliare var. japonicum (Franch. & Sav.) Kitam.
  • Melampyrum esquirolii (H.Lév. & Vaniot) Hand.-Mazz.
  • Melampyrum henryanum (Beauverd) Soó
  • Melampyrum japonicum (Franch. & Sav.) Soó
  • Melampyrum jedoense Miq.
  • Melampyrum jedoense var. luxurians Miq.
  • Melampyrum laxum subvar. albiflorum Beauverd
  • Melampyrum laxum var. aristatum Beauverd
  • Melampyrum laxum var. henryanum Beauverd
  • Melampyrum laxum var. obtusifolium (Bonati) Beauverd
  • Melampyrum obtusifolium Bonati
  • Melampyrum ovalifolium Nakai
  • Melampyrum ovalifolium f. albiflorum (Beauverd) Tuyama
  • Melampyrum roseum f. albiflorum (Beauverd) Nakai
  • Melampyrum roseum f. glabrescens Tuyama
  • Melampyrum roseum f. leucanthum Nakai
  • Melampyrum roseum f. pubescens Tuyama
  • Melampyrum roseum subsp. hirsutum (Beauverd) Soó
  • Melampyrum roseum subsp. ovalifolium (Nakai) Beauverd
  • Melampyrum roseum var. aristatum Beauverd
  • Melampyrum roseum var. ciliare (Miq.) Nakai
  • Melampyrum roseum var. hirsutum Beauverd

and 2 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.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

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.