Pentzia oppositifolia Magee

Compact, rounded, densely leafy, aromatic shrublet, 0.1-0.15 m tall; stems erect to spreading, well-branched, branches divaricate or somewhat fastigiate, younger branches white-or grey-felted; cortex rough. Leaves opposite, regularly arranged along upper parts of branches, suberect, 3.0-6.0 x ±1.5 mm, pinnately 3-to 7-lobed, lower half usually narrowed into petiole-like base 1.5-3.0 mm long, often basally connate; densely white-or grey-felted on both surfaces when young, sometimes glabrescent, often canescent; lobes ovate to narrowly ovate, 0.5-1.0 x ±0.5 mm, lateral lobes spreading obliquely; sheath not differentiated from lamina, only uppermost leaves with 1 to 3 pairs of secondary basal lobes, remnants of leaf ± persistent. Capitula discoid, homogamous, solitary or sometimes with 1 or 2 additional capitula from the leaf axils below; peduncle 3-10 mm long, densely felted, greenish to light brown. Involucre hemispherical to broadly or narrowly campanulate, 3.0-4.0 x 2.5-5.0 mm, erect to spreading at rim; involucre bracts 4-seriate, median resin canal absent, margins and apices scarious, membraneous apices of inner and innermost bracts 0.7-1.0 mm long; outer bracts narrowly ovate to ovate, 1.5-2.0 mm long; middle bracts ovate, 2.0-2.5 mm long; inner bracts ovate, ca. 3.0 mm long, slightly to prominently incurved; innermost bracts oblanceolate to narrowly obovate, 3.0-3.5 mm long. Receptacle convex, epaleate, alveolate. Florets bisexual, numerous. Corolla 2.0-2.5 mm long, yellow, with glandular trichomes; tube 1.2-1.5 mm long; limb capuliform, ±0.7 mm long (excluding the lobes), 5-lobed; lobes triangular, spreading, 0.25-0.4 mm long. Anthers ±1.0 mm long including apical appendages, slightly sagittate at base; apical appendages ovate to broadly ovate, obtuse. Style terete with thickened base; branches ±0.5 mm long, truncate, papillate apically-dorsally. Pappus absent. Cypselas oblong, ±1.5 x 0.5 mm, 5-ribbed, glandular trichomes between ribs, mucilaginous when soaked.