Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Senecio flaccidus, formerly recorded as Senecio douglasii (in honor of the botanist David Douglas) member of the daisy family and genus Senecio also known as Threadleaf Groundsel (and Bush Senecio, Creek Senecio, Shrubby Butterweed, Comb Butterweed, Smooth Threadleaf Ragwort, Mono Ragwort, Douglas Ragwort, Douglas Groundsel, Sand Wash Groundsel, Felty Groundsel, Old Man, Yerba Cana, Squawweed or Cenicillo) is a native of the southwestern Great Plains of North America. Threadleaf ragwort is a fast growing, short lived (3 to 6 years) bushy perennial shrub growing to 4 feet 6 inches ; common in gravelly washes, dry creek beds, along roads & trails and mostly away from the coast.

Plant type

Shrub

Size

5 ft Tall

Growth rate

Fast

Calscape icon
Color

Yellow

Flowering season

Summer, Fall

Sun

Full Sun

Water

Extremely Low, Very Low

Soil drainage

Fast

Site type

Dry, rocky or sandy places

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 26 likely

Confirmed Likely

Oso Flaco Flightless Moth

Areniscythris brachypteris

Orange Tortrix Moth

Argyrotaenia franciscana

Alfalfa Looper Moth

Autographa californica