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Samolus ebracteatus  Kunth  subsp. cuneatus  (Small ) R. Knuth
Comanche County, Kansas
Height: To 24 inches
Family: Primulaceae - Primrose Family
Flowering Period:   May, June, July, August, September,October
Also Called: Limewater brookweed, limerock brookweed.
Stems: Ascending or reclining, solitary or tufted, simple to usually sparingly branched.
Leaves: In basal rosette and mostly opposite on stem, simple, egg-shaped to oblanceolate to broadly spoon-shaped, to 6 inches long, and 2.4 inches wide, mostly waxy; margins entire; tips truncate or with sharp, short, abrupt point.
Inflorescences: Raceme, .5 to 1.2 inches long, glandular hairy, terminal; stalk straight, stout, longer than stem,
Flowers: Stalk slender, wiry, spreading or ascending, .4 to 1.2 inches long; calyx bell-shaped, 5-lobed; lobes triangular to oblong-ovate, glandular at base, often purplish, tips pointed; corolla 1/6 to 1/4 inch wide, white; lobes 5, egg-shaped, overlapping, shorter than bell-shaped tube, tips truncate or flat, toothed; stamens 5, not projecting beyond corolla.
Fruits: Capsule, spherical, 1/6 inch in diameter; seeds numerous, tiny.
Habitat: Along streams and rivers, marshes, seepage areas, wet limestone; moist soils.
Distribution: South 1/5 of Kansas.

Water pimpernel corollas and calyces
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Comanche County, Kansas
Water pimpernel inflorescence
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Comanche County, Kansas
Water pimpernel leaves
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Comanche County, Kansas