Lupinus rivularis (Riverbank lupine)
Native short-lived perennial or occasionally biennial legume with purple-blue to white flowers, blooming March to August. Prefers well-drained, sandy or gravelly soils on dunes and road cuts, as well as marshes, streams and wet meadows; up to 8,000 ft. elevation. Use for restoration and as a fast growing pioneer after disturbance on infertile soils. Provides pollen and nectar for native bees, butterflies and other beneficial insects. Varieties listed below.
DISTRIBUTION / ADAPTATION
INFORMATION & ATTRIBUTES
Family: Fabaceae
Duration: Perennial
Growth Habit: Forb/herb
Native Status: Native
Growth Form: Multi-stemmed
Mature Height: 1-5 ft..
Bloom Color: purple-blue
Bloom Period: March-July
Annual Precipitation: 18-100 in.
Drought Tolerance:
Shade Tolerance:
Elevation: below 6,000 ft.
Fire Resistance:
Fire Tolerance:
Nitrogen fixation:
SOIL ADAPTATION
Coarse Texture: Yes
Medium Texture: Yes
Fine Texture: No
Salinity Tolerance:
CaCO3 Tolerance:
pH Range:
SEEDING NOTES
Seeds per Pound: 15,000-31,000
Seeding Rate: 10 PLS lbs/acre
Season:
Days to Germination:
VARIETIES & LOCAL ACCESSIONS
Herdema - Rapid establishment and growth; high seedling vigor and seed yields. Tolerant of disease and insect damage. Originally incorrectly released as a variety of Sicklekeel lupine (L. albicaulis). (Released 1981)