Mazus miquelii (Miquel's mazus)

Plate 1 figs. a–h · 8 separate observations

Mazus miquelii, photographed by mami_t_t — fig. a mami_t_t, CC BY 4.0 / 2022-05-12 / obs. 196994538

Mazus miquelii, photographed by WATANABE Hitoshi 渡辺仁 — fig. c WATANABE Hitoshi 渡辺仁, CC BY 4.0 / obs. 195887048

Mazus miquelii, photographed by Se Lena — fig. d Se Lena, CC BY 4.0 / obs. 195899901

Mazus miquelii, photographed by Will Kuhn — fig. h Will Kuhn, CC BY 4.0 / obs. 190689403

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 5 botanical countries

Native distribution of Mazus miquelii, 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.

Region	TDWG code	Continent
China South-Central	CHC	ASIA-TEMPERATE
China Southeast	CHS
Japan	JAP
Korea	KOR
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.

Flowering 175 in flower of 175 examined

100%

Proportion of examined Mazus miquelii in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	1	1	too few examined
Mar	14	14	100%	78% to 100%
Apr	90	90	100%	96% to 100%
May	59	59	100%	94% to 100%
Jun	8	8	100%	68% to 100%
Jul	0	0	too few examined
Aug	2	2	too few examined
Sep	0	0	too few examined
Oct	0	0	too few examined
Nov	1	1	too few examined
Dec	0	0	too few examined

Peak flowering in Mar. Each bar is the share of Mazus miquelii observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 175 of 175 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 23 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.

Mazus englerianus Bonati
Mazus fargesii Bonati
Mazus japonicus Bonati
Mazus japonicus var. albiflorus Makino
Mazus japonicus var. leucanthus X.D.Dong & Ji H.Li
Mazus miquelii f. albiflorus (Makino) Makino
Mazus miquelii f. contractus (Makino) Sugim. ex Yamazaki
Mazus miquelii f. rotundifolius (Franch. & Sav.) T.Yamaz.
Mazus miquelii subsp. contractus Makino
Mazus miquelii var. rotundifolius (Franch. & Sav.) Nakai
Mazus miquelii var. stolonifer (Maxim.) Nakai
Mazus reptans N.E.Br.
Mazus rotundifolius (Franch. & Sav.) Koidz.
Mazus rotundus Furumi
Mazus rugosus var. macranthus Franch. & Sav.
Mazus rugosus var. rotundifolius Franch. & Sav.
Mazus rugosus var. stolonifer Maxim.
Mazus stolonifer (Maxim.) Makino
Mazus stolonifer f. roseus Honda
Mazus stolonifer var. taibokuensis Masam.
Mazus wilsonii Bonati
Pyxidaria japonica (Miq.) Kuntze
Vandellia japonica Miq.

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.
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.