Perityle megalocephala

Perennials or subshrubs, 15-55 cm (often dense, profusely branched clumps, sparsely leafy); densely hirtellous. Leaves: petioles 1-6 mm; blades usually elliptic, lanceolate, lance-ovate, ovate, or suborbiculate, sometimes linear, 4-8(-15) × 1-10(-12) mm, margins entire, irregularly and sparsely serrate, or serrate-lobed. Heads borne singly or (2-3) in loose, corymbiform arrays, 6-9(-10) × 5-6(-8) mm. Peduncles 10-45(-80) mm. Involucres campanulate. Phyllaries 14-20, lanceolate to suboblanceolate, 5-6 × 1.3-1.9 mm. Ray florets 0. Disc florets 45-60; corollas yellow, tubes 1-1.6 mm, throats tubular to subfunnelform, 1.6-2.2 mm, lobes 0.4-0.7 mm. Cypselae narrowly oblanceolate to suboblanceolate, 2.5-3 mm, margins thin-calloused, short-hairy; pappi 0, or of single bristles.