Tuberose

Polianthes tuberosa doesn't have any botanical or olfactory relation to roses, despite the name. This small white blossom flowering plant is its own thing, a "white floral" (in the same class as jasmine and orange blossom) with an intensity and creaminess beyond any other: Though the scent can be likened to that of orange blossom and gardenia, tuberose has interesting facets of camphor in the opening (comparable to - but not quite that green - as budding gardenias), of dewy mushroom and earth when in bloom and then of rot and bloody meat when browning. Buttery, rubbery and even metallic facets also emerge if one searches for them. The natural blossoms are so powerful they can fill a room and continue to exude their scent for days after picking.
The tuberose (Polianthes tuberosa) is a perennial plant related to the agaves, extracts of which are used as a middle note in perfumery. The common name derives from the Latin tuberosa, meaning swollen or tuberous in reference to its root system. Polianthes means "many flowers" in Greek. In Mexican Spanish the flower is called nardo or vara de San José, which means ‘St. Joseph’s staff’.