Southern Oregon Buttercup

Ranunculus austrooreganus

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ranunculaceae
Genus:
Ranunculus
Species:
Ranunculus austrooreganus
USDA Symbol:
RAAU

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
30 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
apr,may,jun
Bloom Colors:
yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Keystone Species Ranking

Pollen Specialist Bee Keystone:
★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
bees

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:
prefers habitats near streams or wetlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–42 days
Notes:
Cold stratification improves germination rates. Seeds may germinate erratically over several weeks.

The above propagation data sourced from Claude AI