Scientific NameRumex crispus
Other Common Names:
This taprooted perennial begins germinating in late spring, continuing into fall if conditions permit. The plant then emerges in midspring, flowering from April through July.
The plant produces a basal rosette of hairless leaves that are dark green with wavy margins. The alternate stem leaves are surrounded by a membranous sheath (ocrea), and are both smaller in size in number than the basal leaves.
This plant can be differentiated from the broadleaf dock by its wavy narrow leaves.
Flower Seed Head
Flowers occur in clusters 15 to 60 cm long on an elongated stem. The flowers are made up of greenish sepals that turn reddish brown as it matures.
The seeds are contained in a 2 mm long triangular, glossy brown achene. Achenes are found inside a triangular calyx, with papery structures surrounding it, allowing it to float on water.
This plant prefers moist soil, and can be found in standing water, or areas that are frequently over watered. They can be found growing in low-lying meadows or pastures, orchards, and along drainage ditches.
prostrate and nonwoody
Thorns or Spines
Approximate Flower Diameter
Dominant Flower Color
Stem Cross Section
round or oval