Northern Prairie Wildlife Research Center
Northeast Wetland Flora
Field Office Guide to Plant Species
Didiplis diandra (Nutt. ex DC.) A. Wood
- Family: Loosestrife (Lythraceae)
- Flowering: June-August
- Field Marks: This species that often roots in mud is recognized by its sessile, opposite
leaves and solitary flowers in the axil of the leaves that consist of tiny 4-parted green sepals,
stamens, and a small superior ovary.
- Habitat: Mud, shallow water.
- Habit: Creeping or floating annual with fibrous roots.
- Stems: Creeping or floating, slender, smooth, up to 6 inches long.
- Leaves: Opposite, simple, narrowly oblong, smooth, without teeth, sessile, up to 3/4 inch long, the submersed leaves longer and narrower than the emersed leaves.
- Flowers: Borne singly in the axils of the leaves.
- Sepals: 4, very short, united to each other, green.
- Petals: 0.
- Stamens: 4.
- Pistils: Ovary superior, smooth.
- Fruits: Capsules spherical, indehiscent, up to 1/12 inch long, smooth.
- Notes: This plant may grow either in water or rooted in mud.
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