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Northern Prairie Wildlife Research Center

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Aquatic and Wetland Vascular Plants of the Northern Great Plains

23. Primulaceae, the Primrose Family

2. Lysimachia L. -- Loosestrife

1. Lysimachia ciliata L. -- Fringed loosestrife


Plants erect, simple or sparingly branched above, 3-10 dm tall, from long-spreading rhizomes. Leaves distinctly petioled, the blades dark to bright green above, slightly paler beneath, ovate to ovate-lanceolate, 4-13 cm long, 2-6 cm wide, acute to acuminate, short-ciliate on the margin, subcordate to rounded or somewhat attenuate at the base; petioles 0.5-4 cm long, ciliate for the entire length. Flowers single from the upper axils, on pedicels 2-6(8) cm long; calyx lobes lanceolate, 4-8 mm long; corolla lobes rotund to obovate, 5-12 mm long, finely erose, apiculate; anthers 2-3.5 mm long; staminodes present, inconspicuous, narrowly triangular, 1-2 mm long, membranous. Capsules 4-7 mm in diameter, containing many angular, dark brown to black seeds 1-2 mm long. Jul--Aug. Shores, stream banks, wet meadows, ditches, floodplains, moist woods and thickets; common; (Que. to AK, s to FL, TX, NM, UT and OR).
GIF- Species Photo/Drawing
Lysimachia ciliata.
GIF- Distribution Map

Map key


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Return to Family -- Primulaceae - The Primrose Family
Next Species -- Lysimachia hybrida Michx.

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