diplostemonous

diplostemonous

(ˌdɪpləʊˈstiːmənəs; -ˈstɛm-) adj (Botany) (of plants) having twice as many stamens as petals, esp with the stamens arranged in two whorls[C19: from New Latin diplostemonus (unattested), from diplo- + -stemonus relating to a stamen]