Plants mostly 40-70 cm. Stems erect, usually branched distally. Cauline leaves: blades (green) ovate-lanceolate to deltate, 6-15 cm, bases truncate or subcordate, margins entire or serrulate to crenate, faces sparsely hispid or scabrous (and finely gland-dotted, often vernicose). Heads held beyond or among the leaves. Involucres hemispheric, 15-30 mm diam. Outer phyllaries oblong to lanceolate or oblanceolate, 12-20+ mm (± equaling discs, tips usually spreading to squarrose). Ray florets 10-16(-21), laminae 20-25 mm. Cypselae ca. 6 mm, glabrous; pappi coroniform, 0.1-1 mm. 2n = 38.

Flowering May-Jun. Chaparral, oak woodlands; of conservation concern; 300-500 m; Calif.

Agnorhiza reticulata is known only from foothills of the Sierra Nevada and is considered to be globally endangered.