Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Lythrum lineare L.
- Family: Loosestrife (Lythraceae)
- Flowering: July-October
- Field Marks: This much branched perennial herb is recognized by its narrow opposite leaves
and its white or pale violet flowers with usually 6 petals.
- Habitat: Brackish marshes and shores.
- Habit: Perennial herb, with basal offshoots rooting at the nodes later in the season.
- Stems: Upright, much branched, smooth, up to 4 1/2 feet tall.
- Leaves: Opposite, simple, linear to narrowly lanceolate, rounded at the tip, tapering to the base,
without teeth, smooth, up to 2 inches long, up to 1/5 inch wide.
- Flowers: Solitary in the axils of leaf-like bracts.
- Sepals: Usually 6, united below, up to 1/5 inch long, usually with 6 large appendages so that
there appears to be 12 sepals.
- Petals: Usually 6, white or pale violet, free from each other, up to 1/5 inch long.
- Stamens: Usually 6.
- Pistils: Ovary superior.
- Fruits: Capsules cylindrical; seeds brownish to yellowish, minute.
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