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.

native distribution

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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.

Wetland Indicator Status: FAC

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)