Wood Dock

Rumex sanguineus L.

light
Full sun
water
Medium
tall
38 cm
wide
38 cm

Polygonaceae

Also called Bloody Dock, Blood Dock, Blood Sorrel, Red-veined dock

Formerly Acetosa sanguinea, Lapathon sylvaticum, Lapathum nemorosum, Lapathum sanguineum, and 6 more

When it flowers

Not known yet in the tropics: too few flowering observations to read a season from.

Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.

PetsNo pet-safety information yet
PeopleNC State Extension lists it as mildly poisonous (all parts) (25 Oct 2026)

If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.

Something wrong with it?

About it

Grows as
PerennialKew's checklist, not yet checked
Climate
TemperateKew's checklist, not yet checked
Wild in
Europe to N. IranKew's checklist, not yet checked
Light
Full sun (6 h or more)Read from NC State Extension, one source
Height
30 cm to 46 cmRead from NC State Extension, one source
Spread
30 cm to 46 cmRead from NC State Extension, one source
Water
Average: moist, well drainedRead from NC State Extension, one source
Flowers
Red, green, brownRead from NC State Extension, one source
Coldest it survives
-34.4 °C (USDA zone 4a)Read from NC State Extension, one source

Not known yet: heat, hottest it survives.

In other languages (12)

French
Oseille sanguine, Patience sanguine, oseille sanguine
Czech
šťovík krvavý
German
Hain-Ampfer, Blut-Ampfer, Blutampfer
Danish
Skov-skræppe
Dutch
Bloedzuring, bloedzuring
Norwegian Bokmål
skoghøymol
Finnish
verihierakka
Polish
Szczaw gajowy
Japanese
ニセアレチギシギシ
Russian
Щавель кровяной, Щавель кроваво-красный, Щавель красный
Chinese (China)
红脉酸模
Swedish
skogsskräppa, vanlig skogsskräppa, blodskräppa

Where this comes from

A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.