Herbs annual. Stems 10-25 cm tall, slender, glabrous, much branched at base. Petiole 1-2 cm, sometimes narrowly winged; leaf blade ovate or broadly ovate, 0.8-2 × 0.6-1 cm, both surfaces glabrous, base nearly truncate, broadly cuneate, sometimes along petiole decurrent forming narrow wing, margin entire or 2-lobed at base, apex acute or obtuse; ocrea tubular, lax, membranous, glabrous, apex truncate or 2-cleft. Inflorescence terminal or axillary, capitate, small, 5-6 mm in diam.; peduncle glandular hairy in upper portion; bracts green, ovate or broadly ovate, herbaceous, sparsely glandular hairy or glabrous, margin membranous, apex acute. Perianth white or pinkish, 5-parted; tepals elliptic, 0.5-1 mm. Stamens usually 5. Styles 3, connate at middle; stigmas capitate. Achenes included in persistent perianth, black, opaque, ovoid, trigonous or biconvex, 1-2 mm, finely glandular or pitted.
Home