A slender, erect, columnar shrub of monopodial growth habit, 1-2 m in height, usually unbranched but occasionally producing between one and three side branches from upper part of the single main stem at maturity; main stem to 25 mm in diam. at base. Branches villous, 5-8 mm in diam. Leaves ascending, subimbricate, ovate to broadly ovate-acute, 50-80 mm long, 25-40 mm broad, sessile to subcordate at base, apex acute, tridentate, the central tooth longer and more prominent than the two laterals; densely silvery-sericeous. Inflorescence broadly cylindric, 100-150 mm long, topped by a flattened coma of reduced, horizontally patent leaves, having a pinkish-purple hue in live state. Capitula 8-12-flowered, subtended by a prominently cucullate leaf; subtending leaves flushed yellowish-gold with a faint pinkish-purple overlay during anthesis. Outer involucral bracts oval to rounded, 10-16 mm long, 8-15 mm broad; inner series becoming oblong to linear-obtuse, 15-20 mm long, 3-8 mm broad; sparsely sericeous on outer surface, margins densely sericeously ciliate. Floral bracts linear to linear-spathulate, obtuse, 15-18 mm long, 2-3 mm broad, densely tomentose. Perianth 35-45 mm long; tube quadrangular, 5 mm long, glabrous but becoming villous distally; claws linear-filiform, densely villous; limbs linear-filiform, acute, scarcely differentiated from claws, 6-8 mm long, villous. Anthers sessile, with a broadly saggitate to spade-shaped, black apical connective. Style 50-65 mm long. Pollen presenter narrowly obconic with an acute apical papilla containing the stigmatic groove, tapering proximally to a distinct annulate junction with style. Ovary 1-2 mm long, scarcely differentiated from style. Hypogynous scales linear-acute, 3 mm long.
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Like M. hottentoticus but inflorescence leaves golden, involucral bracts ovate, style yellow.