Cotula eckloniana (Dc.) Levyns

Spreading annual herb. Stems 40-200 mm, glabrous to sparsely hairy, herbaceous, 1.5-2.0 mm wide. Leaves opposite, slightly spreading, entire 10-35 x 0.4-0.8 mm, base dilated, forming a prominent sheath around stem, sheath 1.0-4.0 mm long; leaves linear, ± terete, leathery, dark green, glabrous to hairy, apices acute, margins entire. Capitula heterogamous, disciform, solitary, terminal, pedunculate, peduncles glabrous to sparsely hairy, 6.0-10 mm. Involucre hemispherical, 3.0-6.0 x 5.0-10 mm, 2-seriate, outer bracts ovate tapering to a narrow terminal appendage with obtuse apex, 3.0-5.0 x 2.0-4.0 mm, glabrous, green, apex and margin scarious, three-veined, secondary venation obscure; inner bract oblong, 2.0-3.0 x 1.5-2.0 mm, glabrous, whitish, slightly transparent, prominently pitted. Receptacle flat, epalate; pedicels 0.6 mm at anthesis, ovate, uniform throughout the head, disciform pedicel attaching to floret apically, disc pedicel attaching to floret floret supro-ventrally. Disciform florets female, ca. 5, in single outer series, corolla absent, style 0.6 mm, ovary broadly marginally winged, inner face glabrous. Disc florets bisexual, ca. 25 to 40, corolla 1.3 mm long, whitish to yellow, narrowly oblong, corolla broadly tailed on outer face; tail ca. 1.5 x 1 mm, obovate, dorsal surface medially winged, ventral surface apically pouched over ovary, longitudinal resin canals present, limb ± twice width of tube, 4 lobed; lobes triangular, upright to spreading, dorsally tuburculate, not glandular; anthers 0.5-1.2 mm long (including apical appendages), ecaudate, apical appendages ovate, acute; style terete with thickened base; branches truncate, papillate apically-dorsally; ovary narrowly marginally winged. Cypselas heteromorphic; disciform cypselas ovoid, ca. 1.77 x 1.37 mm, broadly marginally winged, wing ± twice width of ovary, base strongly cordate, inner face glabrous to sparsely hairy; disc cypselas ovoid, ca. 1.3 x 0.4 mm, narrowly laterally winged, wing ? of the ovary, glabrous.