Rhinanthus minor ssp. minor
Orobanchaceae
Yellow Rattle
Stems erect, leafy, sometimes branched. Plant slightly hairy. Leaves opposite, sessile, 1–3 in. long, lance-shaped, with pointed tip, deeply toothed. Flowers among leaves. Flower calyx inflated like a green balloon with a small yellow flower emerging; upper lip hood-like over 3 lobes below. Seeds inside enlarged calyx rattle when dry. Grows in moist fields, meadows, at low elevations. Circumboreal.
- Rarity: Locally Common
- Flowering Time: Early Summer
- Flower Form: 5 petals, 2 lips (Scrophulariaceae)
- Life Cycle: Annual
- Height: 10–30 inches
- Habitat: Meadow, Moist Open Areas
- Found In: Mt. Rainier NP, West Gorge
- Native: Yes
- Also Known As: Little Rattlebox
- Latin Synonyms: Rhinanthus crista-galli
