28. Vernonia maritima Merrill, Philipp. J. Sci. C, 3: 440. 1909.
滨海斑鸠菊 bin hai ban jiu ju
Cyanthillium maritimum (Merrill) H. Robinson & Skvarla.
Dwarf subshrubs, 7-10 cm tall, rarely higher. Stems often curved or procumbent, obliquely ascending in upper part, many branched, striate, gray-white hispidulous. Lower leaves withered by anthesis, middle leaves many, closely spaced; leaf blade spatulate, 1.5-2.5 × 0.4-0.7 cm, densely gray-white hispidulous, base progressively attenuate into slender petiole, margin entire or repand, apex rounded or obtuse; upper leaves smaller, spatulate. Synflorescences terminal, panicles ± flat-topped. Capitula few, usually 3-5, 5-7 mm in diam.; peduncle 5-12 mm; bracteoles 1 or 2, subulate, densely hispidulous. Involucre ca. 4 × 5-7 mm; phyllaries 5-seriate, outer subsubulate, 1.5-2 mm, spinescent, puberulent, median ovate, ca. 3 mm, apex acute and mucronulate, inner oblong, sparsely puberulent, with scarious margins. Receptacle flat, foveolate. Florets more than 20; corolla tubular, ca. 2.5 mm, with campanulate limb; lobes lanceolate, apically glandular. Achenes subcylindric, 1-1.2 mm, 5-angled, glandular between ribs or sometimes sparsely puberulent, apex truncate. Pappus 1-seriate, white, ca. 1 mm, readily deciduous.
Vernonia maritima Hayata (J. Coll. Sci. Imp. Univ. Tokyo 22: 202. 1906) is a nomen nudum not mentioned by Merrill.