Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Lysimachia quadrifolia L.
- Family: Primrose (Primulaceae)
- Flowering: May-July
- Field Marks: This perennial herb has leaves in whorls of 3-6 and yellow flowers with 5 petals solitary in the axils of the leaves.
- Habitat: Moist to dry soils in woods, stream banks, bottomland woods.
- Habit: Perennial herb with rhizomes.
- Stems: Upright, usually unbranched, slender to stout, hairy, up to 2 feet tall.
- Leaves: In whorls of 3-6, simple, except for scale-like leaves on the lower 1/3 of the stem,
lanceolate to elliptic to ovate, pointed at the tip, tapering to the base, toothless, smooth or hairy,
purple-dotted, up to 5 inches long, up to 2 inches wide.
- Flowers: Solitary in the axils of some of the upper leaves, on slender stalks up to 2 1/2 inches
- Sepals: 5, green but streaked with purple, united only at the base, up to 1/4 inch long.
- Petals: 5, yellow with occasional purple streaks and a purple blotch at the base, united only at
the base, up to 1/4 inch long.
- Stamens: 5, united below.
- Pistils: Ovary superior.
- Fruits: Capsules nearly spherical, up to 1/5 inch in diameter, purple-spotted; seeds numerous,
shiny, dark brown, veiny.
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