Phymaspermum appressum Bolus

Single-stemmed, densely leafy shrublet, 0.3-1.2 m high. Stem much-branched; branches erect to spreading, glabrous to silvery tomentose; fascicles present in leaf axils. Leaves alternate, closely imbricate, appressed, 1.0-3.0 x 0.5-2.0 mm, ovate to lanceolate, acute to mucronate, entire, without petiole-like base, without secondary basal lobes, glabrous on both surfaces, bony; basal swelling present, continuous with stem ribs. Capitula radiate, heterogamous, terminal on short axillary shoots, solitary, with 0-3 additional capitula from leaf axils below, prominent peduncles absent. Involucre 7.0 x 4.0-8.0 mm, hemispherical to cyathiform, tapering at the base; involucral bracts 3-seriate, tightly arranged, margins and apices scarious, membranous apices of all bracts 0.7-1.0 mm long, scarious texture, brown margins absent, median resin canals present; outer bracts broadly ovate sometimes oblong, 2.5-3.0 mm long, rounded; middle bracts broadly obovate sometimes oblong, 3.0-3.5 mm long, rounded; inner bracts narrowly obovate sometimes oblong, 4.3-4.5 mm long, rounded. Receptacle convex to flat; paleae in marginal series, linear, 3.8-4.0 mm long, rounded, scarious. Ray florets 11-14; tube 1.7-2.0 mm long; limb ovate to obovate, 7.0-8.5 x 2.7-3.0 mm, apically 3-dentate, rarely entire sometimes with longer middle tooth, white to purple. Disc florets 22-47, without resin canals; corolla 2.0-2.3 mm long, with only glandular trichomes, yellow to purple; tube 0.9-1.0 mm long; limb very narrowly campanulate, 1.0-1.2 mm long (excluding lobes); lobes erect,0.3-0.5 mm long, triangular. Anthers 2.4-4.3 mm long (including apical appendage); apical appendage ovate. Style 2.2-3.8 mm long (excluding branches); branches 0.4-1.9 mm long. Cypselas 2.0 x 0.5 mm, narrowly obovate, 12-ribbed, apical rim thickened, slightly dentate, brown, glandular trichomes present, dense, mostly between ribs, mucilaginous when soaked, discontinuous resin canals in ribs absent. Flowering is from April to December.