Hypericum elodes

Plate 1 figs. a–h · 8 separate observations

Hypericum elodes, photographed by euanmck — fig. b euanmck, CC BY 4.0 / obs. 155942724

Hypericum elodes, photographed by Thomas Gyselinck — fig. c Thomas Gyselinck, CC BY 4.0 / obs. 148354742

Hypericum elodes, photographed by Carminda Santos — fig. d Carminda Santos, CC BY 4.0 / obs. 142376495

Hypericum elodes, photographed by Anthony O'Leary — fig. f Anthony O'Leary, CC0 1.0 / obs. 133608344

Hypericum elodes, photographed by James Clow — fig. g James Clow, CC0 1.0 / obs. 131047832

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 9 botanical countries

Native distribution of Hypericum elodes, 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
Belgium	BGM	EUROPE
France	FRA
Germany	GER
Great Britain	GRB
Ireland	IRE
Netherlands	NET
Portugal	POR
Spain	SPA
Azores	AZO	AFRICA

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

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 67 in flower of 90 examined

50%

89%

94%

78%

33%

Proportion of examined Hypericum elodes 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	1	3	too few examined
May	0	4	too few examined
Jun	4	8	50%	22% to 78%
Jul	25	28	89%	73% to 96%
Aug	17	18	94%	74% to 99%
Sep	18	23	78%	58% to 90%
Oct	2	6	33%	10% to 70%
Nov	0	0	too few examined
Dec	0	0	too few examined

Peak flowering in Aug. Each bar is the share of Hypericum elodes 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. 67 of 90 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.

Where it actually grows measured, from 889 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	0.1 °C	3.0 °C	8.0 °C
Warmest month, mean daily high	17.1 °C	21.2 °C	26.6 °C
Annual rainfall	703 mm	953 mm	1,959 mm
Rainfall in the driest quarter	66 mm	166 mm	302 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 889 research-grade observations of Hypericum elodes 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. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 16 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.

Elodea palustris Spach
Elodes glandulosum St.-Lag.
Elodes palustris J.St.-Hil.
Elodes palustris Spach
Elodes palustris f. submersa Glück
Helodes glandulosa St.-Lag.
Hypericum elodes f. glabratum Druce
Hypericum elodes f. terrestre Glück
Hypericum enodes Neck.
Hypericum helodes St.-Lag.
Hypericum helodes f. terrestre Glück
Hypericum helodeum St.-Lag.
Hypericum palustre Salisb.
Spachelodes elodes (L.) Y.Kimura
Tripentas elodes (L.) Asch.
Tripentas helodes Asch.

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.
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.