Spearleaf Arnica

Arnica longifolia D.C. Eaton - Aster family

Size

Mature Height: Up to around 24 inches

Plant Type: Forb/herb

Root Depth: 10 inches

Growth Form: Bunch

Growth Rate: Moderate

Features

Flower Color: Yellow

Conspicuous Flowers: Yes

Bloom Time: Early Summer

Seasonal Growth: Summer

Evergreen: No

Fall Colors: No

Conditions

Shade Tolerance: Tolerant

Clay Soil Tolerance: Yes

Sandy Soil Tolerance: Yes

Drought Tolerance: None

Flood Tolerance: High

Fire Tolerance: Medium

Salt Tolerance: None

Native Range

CAN: Alberta, British Columbia
USA: California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming

Regional Native Status: L48 (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.