Sonoran Desert Naturalist >>> Field Guide >>> Sonoran Desert Flora >>> Asteraceae >>> Thymophylla pentachaeta

Golden Dyssodia
Fiveneedle Pricklyleaf

Thymophylla pentachaeta

Photo by Michael Plagens

This photo was taken in Phoenix May 2007. A full resolution image is hosted at Wikimedia.

Sponsored Links:

PERENNIAL / SUBSHRUB : Low growing with a slightly woody crown usu. less than 30 cm tall.

LEAVES Leaves a dissected into linear segments. Under magnification translucent oil glands can be seen which freely emit pungent terpene-like odor.

RANGE : Fairly common on rocky slopes and roadsides across Arizona incl. the Sonoran Desert. The specimen above was in a vacant lot.

FLOWERS: Small, yellow-rayed inflorescences (composite heads) with yellow disc flowers appearing late spring, April - June.

For many years this variety was known as Dyssodia thurberi (Gray) B.L. Robins.

Asteraceae -- Sunflower Family

More Information:

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


Copyright Michael J. Plagens, 1999-2009