Golden Dyssodia
Fiveneedle Pricklyleaf
Thymophylla pentachaeta
This photo was taken in Phoenix May 2007. A full resolution image is hosted at Wikimedia.
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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.