Single-stemmed, densely leafy shrublet, 0.15-0.4 m high. Stem strongly-branched; branches erect to spreading, glabrous to densely silvery pubescent; fascicles sometimes present in leaf axils. Leaves alternate, spreading to rarely reflexed, 3.0-15.0 x 0.8 mm, linear to oblong, mucronate, entire to trifid, sometimes narrowed into petiole-like base, sometimes with secondary basal lobes, glabrous to silvery pubescent on both surfaces, fleshy; basal swelling present, continuous with stem ribs; lobes 2 or 3, 0.2-3.0 x 0.8 mm, oblong, mucronate. Capitula radiate, heterogamous, terminal, solitary, with up to 3 additional capitula from leaf axils below, pedunculate; peduncles 5.0-45.0 mm long, glabrous to silvery pubescent. Involucre 2.5-5.0 x 2.5-6.0 mm, narrowly campanulate (rarely hemispherical), tapering at the base; involucral bracts 4-seriate, tightly arranged, margins and apices scarious, membranous apices of all bracts 0.3-0.6 mm long, usually with fimbriate margins, glabrous to hairy (rarely beyond margins), brown margins absent, median resin canals present; outer bracts deltoid, 1.0-1.6 mm long, acute to attenuate; middle bracts deltoid, 1.5-1.8 mm long, acute to attenuate; inner bracts oblong, 2.2-2.5 mm long, acute to rounded; innermost bracts oblong, 2.8-3.1 mm long, acute to rounded. Receptacle convex; paleae in marginal series, oblong to linear, 2.6-3.0 mm long, rounded, rigid with scarious margins and apices, scarious apices 0.2-0.3 mm long. Ray florets ±7; tube 1.01.2 mm long; limb obovate, 4.5-5.3 x 2.3-3.0 mm, apically 3-dentate, white. Disc florets 10-15, without resin canals; corolla 1.6-2.2 mm long, with only glandular trichomes, yellow to purple; tube 1.0-1.2 mm long; limb campanulate, 0.6-1.0 mm long (excluding lobes); lobes spreading, 0.6-0.7 mm long, triangular. Anthers 2.3-2.8 mm long (including apical appendage); apical appendage ovate. Style 1.7-2.3 mm long (excluding branches); branches 0.5-0.6 mm long. Cypselas 2.0 x 1.0 mm, narrowly to broadly obovate, 10-to 14-ribbed, apical rim thickened, slightly dentate, glandular trichomes present, dense, scattered, mucilaginous when soaked, discontinuous resin canals in ribs absent.
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Dwarf shrub, up to 0.8 m high; much branched, with leaf tufts or leafy shoots in axils of primary shoots. Leaves alternate, sessile; blade linear, ± 7 mm long, margins entire, glabrous. Heads radiate, small, in terminal corymbs. Involucral bracts in several rows, imbricate. Receptacle epaleate. Flowers: ray florets white; disc florets with corolla 5-lobed, yellow; Oct.-May. Fruit with cypsela cylindric, ribbed, with thickened rim. Pappus absent.
Much-branched, dwarf shrub, 0.1-0.8 m high, with leaf tufts or leafy shoots in axils of primary shoots. Leaves alternate, linear, entire, glabrous. Capitula radiate, small, in terminal corymbs. Ray florets white. Disc florets yellow. Flowering time July-May. Pappus absent. Cypselae cylindric, ribbed, with thickened rim.
Similar to P. parvifolium and possibly conspecific with it. Flowering time Mar.-May.
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