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Rumex crispus - curly dock

Scientific Family
Polygonaceae
Other common names
curlyleaf dock
curley dock
narrowleaf dock
sour dock
yellow dock
Plant type
Forbs and Subshrubs
Origin
Introduced
Lifecycle
Perennial
Height
To 4 feet
Riparian
Yes

Erect plants, usually with long tap roots. The fleshy to leathery leaves form a basal rosette at the root. The basal leaves may be different from those near the inflorescence.

Tall, erect, tap rooted perennial, smooth stemmed, without side branches. Basal leaf blades longer than wide, tapering, rough wavy margined. Flowers in whorls of 10 to 25 on branched terminal stem, dense or interrupted at base, branches usually straight.

Habitat

Moist soil along streams, roadsides, ditches and in pastures.

Plant Community
Disturbed Areas
Riparian
Low elevation
3200
High elevation
9000

Flower Characteristics

Small greenish flowers occur in dense whorls on the upper portion of a elongated stem, consisting of tepals (sepals and petals) that become reddish-brown with age.

Flower color
Yellowish-green maturing to dark pink
Flower shape
Other
Tubular
No
First bloom month
March
Last bloom month
October
Flower clusters
Elongated

Leaf and Stem Characteristics

Lance-shaped, wavy-curled margins, alternate on stems, mostly basal to 1 foot long. Lower basal leaves are petioled, without hairs, alternately arranged on the stem. Stem leaves are arranged alternately along the stem.

Leaf type
Simple
Leaf color
Dark green to bluish-green
Leaf shape
Narrow
Leaf margin
Smooth
Leaf attachment
Basal & Alternate
Leaves clasp
No
Leaf hairs
None
Spines
No

Fruit and Seed Characteristics

A small hard dry fruit, 1/8 inch long, that is triangular, glossy, and brown to reddish-brown. A papery 3-valved or 3-winged structure surrounds the fruit.

Fruit type
Achene
Fruit color
Reddish-brown