Dock facts

Rumex obtusifolius has large leaves and some lower leaves have red stems. The leaves are crisped and wavy. The flowers are greenish at first which turns red when they get matured. The seeds are reddish to brown in color. Broadleaf dock is treated as a weed which is somewhat poisonous. The plant produces milk which cause mild dermatitis.

Name Dock
Scientific Name Rumex spp.
Native Native to Europe, it is available in United States, Australia, New Zealand and others.
Common/English Name Broadleaf dock, cushy-cows, butterdock, kettle dock, curly dock,  smair dock
Name in Other Languages Spanish:  acedera de hojas obtusas,
Portuguese: labaca-obtusa,
French: patience à feuilles obtuses,
Czech Republic: stovik tupolisty,
Greece: lapatho,
Germany: Stumfblättriger Ampfer,
Italy: lingua di capra,
Netherlands: zuring,
Japan: ezonogishigishi,
Sweden: skraeppa,
Poland: Szczaw tepolistny,
Spanish: engorda puercos,
Chinese: un ye suan mo,
Japanese: ezo-no-gishi-gishi,
French: oseille,
Portuguese: labaca
Plant Growth Habit Perennial herbaceous
Soil Loamy fertile
Plant Size 1-3 ft.
Root Stout, branched, yellow taproot
Stem Tough, reddish, unbranched, Height: 1.2 m
Leaf Alternate, lanceolate to ovate; Length: 30 inches
Flowering Season June-October
Flower Small, greenish, Across: 5 mm
Fruit shape & size 3-angled achene, 2.5–3.5 mm (0.1–0.14 inch)
Fruit color Reddish-brown
Taste Sour (Raw leaves)
Seeds Length: 4-6 mm
Varieties/Types
  • Curled dock
  • Western dock
  • Willow dock
Major Nutritions (Raw) Vitamin C (Ascorbic acid) 63.8 mg (70.89%)
Iron, Fe 3.19 mg (39.88%)
Vitamin A, RAE 266 µg (38.00%)
Magnesium, Mg 137 mg (32.62%)
Manganese, Mn 0.464 mg (20.17%)
Copper, Cu 0.174 mg (19.33%)
Vitamin B6 (Pyridoxine) 0.162 mg (12.46%)
Phosphorus, P 84 mg (12.00%)
Potassium, K 519 mg (11.04%)
Total dietary Fiber 3.9 g (10.26%)
Vitamin B2 (Riboflavin) 0.133 mg (10.23%)
Valine 0.177 g (8.38%)
Isoleucine 0.136 g (8.13%)
Threonine 0.125 g (7.10%)
Leucine 0.222 g (6.01%)
Calories in  1 cup chopped (133 g) 29 Kcal.