Sharp-winged Monkey-Flower (Mimulus alatus)
- Family: Figwort (Scrophulariaceae)
- Flowering: June-September.
- Field Marks: This species is recognized by its blue-violet flowers, winged, 4-sided stems, and leaves with distinct stalks.
- Habitat: Along streams, low woods, swamps, marshes, around lakes and ponds.
- Habit: Perennial herb with slender rhizomes.
- Stems: Erect, branched or unbranched, 4-angled and winged, smooth, up to 4 feet tall.
- Leaves: Opposite, simple, lanceolate to ovate, pointed at the tip, tapering to the base, toothed, smooth, up to 4 inches long, up to 2 inches wide.
- Flowers: Solitary in the axils of the leaves, violet-purple, up to 1 inch long, on stalks.
- Sepals: 5, green, united below.
- Petals: 5, 2-lipped, violet-purple, united below into a tube.
- Stamens: 4, attached to the corolla tube.
- Pistils: Ovary superior.
- Fruits: Capsules ellipsoid, up to 1/2 inch long, containing many yellow seeds.
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