Sonoran Desert Naturalist >>> Field Guide >>> Sonoran Desert Flora >>> Asteraceae >>> Senecio flaccidus

Sand Wash Groundsel
Threadleaf Ragwort

Senecio flaccidus
(S. douglasii)

Photo © by Michael Plagens

Photographed near Camp Creek, Maricopa Co., Arizona. June 2008.

Photo © by Michael Plagens

Photographed near Camp Creek, Maricopa Co., Arizona. June 2008.

SHRUBBY PERENNIAL: Robust herb with woody crown and lower branches. Normally grows with many branches rising up from base. Leafy. Plants typically around two meters tall.

FRUIT: The seeds are topped with numerous fine bristles similar to a dandelion's.

LEAVES: Leaves are finely divided into thread-like segments. Variously pubescent, but frequently densly so.

FLOWERS: Bright yellow, narrow rays and darker yellow disc flowers. Blooming mid spring through summer and attractive to a wide variety of insects. Blooms sometimes open through December even after sub-freezing temperatures.

RANGE: Fairly common especially in the higher elvations of the Sonoran Desert in Arizona and Mexico. Especially common within and near sandy washes and along roadways.

UNARMED. No thorns.

Asteraceae -- Sunflower Family

Sponsored Links:

More Information:


Sonoran Desert Field Guide
Sonoran Desert Places
Sonoran Desert Naturalist Home Page


Copyright Michael J. Plagens, 1999-2011, updated 12 Dec. 2011