Arrowleaf Ragwort

Senecio triangularis Hook. - Aster family

Size

Mature Height: Up to around 4.0 feet

Plant Type: Subshrub, Forb/herb

Root Depth: 10 inches

Growth Form: Rhizomatous

Growth Rate: Moderate

Features

Flower Color: Yellow

Conspicuous Flowers: Yes

Bloom Time: Mid Summer

Seasonal Growth: Summer and Fall

Evergreen: No

Fall Colors: No

Conditions

Shade Tolerance: Intermediate

Clay Soil Tolerance: Yes

Sandy Soil Tolerance: No

Drought Tolerance: Low

Flood Tolerance: High

Fire Tolerance: Medium

Salt Tolerance: None

Ecosystem Interactions

Pollinators: Native Bees; Bombus; Beetles, Wasps, Flies; Larval Host (Butterfly); Larval Host (Moth)

Larval Species depending on Arrowleaf Ragwort: Caloreas augustella, Charidryas palla

Native Range

  • USA:  Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Washington, Wyoming
  • CAN:  Alberta, British Columbia, Northwest Territorie, Yukon
Regional Native Status: L48 (N), AK (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.