Senecio triangularis Hook.
Arrowleaf Groundsel, Arrowleaf ragwort
Asteraceae (Aster Family)
Synonym(s): Senecio gibbsonsii, Senecio triangularis var. angustifolius
USDA Symbol: setr
Broadly or narrowly triangular or arrowhead-shaped leaves, with many sharp teeth on edges, grow on several leafy stems that bear yellow flower heads in a branched, flattish cluster at top.
As indicated by the common and technical names, the triangular leaves are distinctive.
From the Image Gallery
Bloom InformationBloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep
DistributionUSA: AK , CA , CO , ID , MT , NM , NV , OR , UT , WA , WY
Canada: AB , BC , NT
Native Distribution: Alaska and western Canada; south to southern California, Arizona, and New Mexico.
Native Habitat: Stream banks and other moist places in the mountains.
Growing ConditionsWater Use: High
Light Requirement: Part Shade
CaCO3 Tolerance: Medium
BenefitConspicuous Flowers: yes
Find Seed or Plants
View propagation protocol from Native Plants Network.
Recommended Species Lists
Additional resourcesUSDA: Find Senecio triangularis in USDA Plants
FNA: Find Senecio triangularis in the Flora of North America (if available)
Google: Search Google for Senecio triangularis
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff