Streambank Bird's-Foot Trefoil

Hosackia oblongifolia

Streambank Bird's-Foot Trefoil

Merrie Freed

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Hosackia
Species:
Hosackia oblongifolia

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
1-2 ft
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
apr, may, jun, jul, aug, sep
Bloom Colors:
White, Yellow

Native Range

United States: Arizona, California, Nevada, Oregon

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
Bee Keystone:
★★★☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Host Plant for Caterpillars

Dusky Green Hairstreak (Callophrys dumetorum), Idas blue (Lycaeides idas)

Reported Fauna Sightings

Bees: Forest bumble bee (Bombus sylvicola), Forest bumble bee (Bombus sylvicola), Indiscriminate cuckoo bumble bee (Bombus insularis), Indiscriminate cuckoo bumble bee (Bombus insularis)

Soil Requirements

Soil Type:
moist, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
Thrives in wet meadows and stream banks.