Sonoran Desert Naturalist >>> Field Guide >>> Sonoran Desert Flora >>> Euphorbiaceae >>> Ditaxis serrata

Saw-toothed Ditaxis
Yuma Silverbush

Ditaxis serrata
(Argythamnia serrata)

Pen & Ink Illustration of Ditaxis serrata © by Michael Plagens

Drawn from live specimen observed in the Gila Mountains, Yuma County, Arizona. 28 Feb 1994. At lower right: inflorescence with two female flowers and an array of much smaller male flowers on a spike above the females.

RANGE: Restricted to the very hot, almost frost-free sections of the Lower Colorado Sonoran Desert. Fairly common in the mountain ranges of Yuma County, but turns dormant after extended drought.

LEAVES: Leaves are stiff and are sharply serrate. Prominent parallel veins.

PERENNIAL: A low, tough, few-leaved, mostly herbaceous sub-shrub.

ARMED. The leaves are stiff and the margins lightly spine-tipped.

FLOWERS: Small and without showy petals. Much larger female flowers arranged on a spike below the males. See illustration. Blooms in response to rainfall.

FRUIT: Dry three-sided capsule.

Euphorbiaceae -- Spurge Family

Sponsored Links:

More Information:

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

Copyright Michael J. Plagens, page created 01 Feb. 2008,
updated 27 May 2018.