KEY TO THE SPECIES

1Pedicels tomentose (at anthesis).
1'Pedicels glabrous (at anthesis).
2Inflorescence a compact regular compound umbel with rigid rufous branches (Vogelkop and Cyclops Mts)
2'Inflorescence more open, less regularly branched, with branches becoming ± glabrous (Mt Bosavi, Papua)
3Flower buds lanceolate, stylopodium at anthesis c. 2 mm long (Vogelkop, Arfak Mts)
3'Flower buds ovoid, stylopodium at anthesis c. 1 mm long (Vogelkop, Nettoti Range and Aifat R.)