Lupinus rivularis
Fabaceae
Streambank Lupine
Erect perennial, rarely woody at base, green, without hairs. Stems red to brown, hollow. Leaves only on stem with short petioles at well-spaced intervals, oval, divided palmately, 5–9 leaflets each 1–2 in. long. Flower heads 6–20 in. long on 1–6 in. stalks. Flowers held loosely on stem, violet or blue, often 2 shades of color. Grows in sand or gravel near marshes, streams, and other wet places, at low elevations.
- Rarity: Locally Common
- Flowering Time: Mid Spring
- Flower Form: Pea flowers, palmate leaves
- Life Cycle: Perennial
- Height: 1 1/2– 3 1/2 feet
- Habitat: Coastal, Meadow, Moist Riverbanks
- Found In: Olympic NP, Siskiyous, West Gorge
- Native: Yes
