Constituido por 87 espécies:
- Monadenium aculeolatum
- Monadenium angolense
- Monadenium arborescens
- Monadenium asperrimum
- Monadenium bianoense
- Monadenium bodenghieniae
- Monadenium canellii
- Monadenium cannellii
- Monadenium capitatum
- Monadenium catenatum
- Monadenium chevalieri
- Monadenium clarae
- Monadenium coccineum
- Monadenium crenatum
- Monadenium crispum
- Monadenium cupricola
- Monadenium depauperatum
- Monadenium descampsii
- Monadenium dilunguense
- Monadenium discoideum
- Monadenium echinulatum
- Monadenium elegans
- Monadenium ellenbeckii
- Monadenium erubescens
- Monadenium fanshawei
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- Monadenium filiforme
- Monadenium friesii
- Monadenium fwambense
- Monadenium gillettii
- Monadenium gladiatum
- Monadenium globosum
- Monadenium gossweileri
- Monadenium goetzei
- Monadenium gracile
- Monadenium guentheri
- Monadenium hedigerianum
- Monadenium herbaceum
- Monadenium heteropodum
- Monadenium hirsutum
- Monadenium intermedium
- Monadenium invenustum
- Monadenium kaessneri
- Monadenium kimberleyanum
- Monadenium kundelunguense
- Monadenium laeve
- Monadenium le
- Monadenium letouzeyanum
- Monadenium lindenii
- Monadenium lugardae
- Monadenium lugardiae
- Monadenium lunulatum
- Monadenium mafingensis
- Monadenium magnificum
- Monadenium majus
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- Monadenium mamfwense
- Monadenium montanum
- Monadenium nervosum
- Monadenium nudicaule
- Monadenium orobanchoides
- Monadenium parviflorum
- Monadenium pedunculatum
- Monadenium petiolatum
- Monadenium pseudoracemosum
- Monadenium pudibundum
- Monadenium reflexum
- Monadenium renneyi
- Monadenium rhizophorum
- Monadenium ritchiei
- Monadenium rubellum
- Monadenium rugosum
- Monadenium schaijesii
- Monadenium schubei
- Monadenium shebeliense
- Monadenium simplex
- Monadenium spectabile
- Monadenium spinescens
- Monadenium spinulosum
- Monadenium stapelioides
- Monadenium stellatum
- Monadenium stoloniferum
- Monadenium subulifolium
- Monadenium succulentum
- Monadenium torrei
- Monadenium trinerve
- Monadenium virgatum
- Monadenium yattanum
- Monadenium zavattarii
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