Dwarf, rhizomatous succulent spreading over 50-300 mm. Stems 20-50 mm long, 5-12 mm thick, decumbent, cylindrical and tessellate to slightly ovoid or clavate, green to brown; tubercles 1-2 mm long, obscure, conical, arranged very roughly into (4-)5 obtuse and obscure angles along stem, abruptly narrowing into very short acute leaf-rudiment <1 mm long with microscopic stipular glands. Inflorescence arising mostly in lower half of stem, of 1-6 flowers opening in gradual succession; pedicel 5-25 mm long, 1.0-1.5 mm thick, usually ascending and holding flower facing upwards among stems; sepals 2-3 mm long, 1 mm broad at base. Corolla 17-30 mm diam.; outside brownish green; inside dark chocolate-brown, glabrous but with dull velvety texture; annulus 2-3 mm tall, 7-11 mm broad, often pentagonal, heavily indented around rim and somewhat constricted towards base, forming shallowly bowl-shaped tube, almost completely containing corona, covered with fine papillae <0.5 mm long; lobes 7-12 mm long, 2-4 mm broad at base, tightly folded along midrib right to base so linear-acute, somewhat rugulose along midrib, glabrous, eciliate. Corona 3-4 mm diam., yellow suffused faintly with brown (particularly on outer lobes); outer lobes forming short pentagonal disc near base of tube and mostly completely contained in it; inner lobes <1 mm long, obtuse, with spreading broadly obtuse dorsal projection ±1 mm long.
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Like D. caespitosa but stems generally somewhat rhizomatous and flowers dark red-brown, glabrescent, with bright yellow corona sunken within annulus.
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