Stellaria palustris (marsh stitchwort)

Plate 1 figs. a–h · 8 separate observations

Stellaria palustris, photographed by Tomas Pocius — fig. a Tomas Pocius, CC0 1.0 / 2021-06-14 / obs. 136282535

Stellaria palustris, photographed by Nina Filippova — fig. b Nina Filippova, CC BY 4.0 / obs. 91124961

Stellaria palustris, photographed by Dmitriy Bochkov — fig. c Dmitriy Bochkov, CC BY 4.0 / obs. 83250572

Stellaria palustris, photographed by Eugene Popov — fig. d Eugene Popov, CC BY 4.0 / obs. 80081029

Stellaria palustris, photographed by Лариса Мельник — fig. e Лариса Мельник, CC BY 4.0 / obs. 79008139

Stellaria palustris, photographed by Yurii Basov — fig. f Yurii Basov, CC BY 4.0 / obs. 78895084

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.

Flowering 125 in flower of 140 examined

80%

90%

94%

80%

100%

Proportion of examined Stellaria palustris in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	0	0	too few examined
Mar	0	0	too few examined
Apr	0	0	too few examined
May	20	25	80%	61% to 91%
Jun	66	73	90%	82% to 95%
Jul	29	31	94%	79% to 98%
Aug	4	5	80%	38% to 96%
Sep	5	5	100%	57% to 100%
Oct	1	1	too few examined
Nov	0	0	too few examined
Dec	0	0	too few examined

Peak flowering in Sep. Each bar is the share of Stellaria palustris 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. 125 of 140 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 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 6 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.

Alsine glauca (With.) E.H.L.Krause
Stellaria barthiana Schur
Stellaria dilleniana Moench
Stellaria fennica (Murb.) Perf.
Stellaria glauca With.
Stellaria hsinganensis Kitag.

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.