Parasitic herb growing from horizontal, irregularly shaped tubers emitting cylindric branched rhizomes. Inflorescences of involucrate heads of flowers from buds on tuber, unbranched, pedunculate to sessile; peduncles densely covered with imbricate scales; receptacle of male inflorescences flat to slightly convex, of female inflorescences conical to hemispherical; perianth segments spirally arranged, unequal in length and extent of attachment to synandrium; perianth cylindric, irregularly 2–4-lobed; ovary inferior, 1-locular. Fruits 1-seeded achenes aggregated into a hemispherical infructescence.
Worldwide: 3 species. 2 in Madagascar and 1 in tropical Africa.
DRC: 1 taxon. |
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