Synonyms: Gomphandra annamensis; Gomphandra axillaris; Gomphandra chingiana; Gomphandra hainanensis; Gomphandra hainanensis var. latifolia; Gomphandra kerrii; Gomphandra obscurinervis; Gomphandra pauciflora (heterotypic); Gomphandra petelotii; Gomphandra polymorpha; Gomphandra polymorpha var. acuminata; Gomphandra polymorpha var. angustifolia; Gomphandra polymorpha var. longifolia; Gomphandra polymorpha var. oblongifolia; Gomphandra polymorpha var. ovalifolia; Lasianthera tetrandra (homotypic); Olax longifolia (heterotypic); Platea axillaris; Platea wightiana; Stemonurus axillaris; Stemonurus ceylanicus; Stemonurus chingianus; Stemonurus hainanensis; Stemonurus heyneanus; Stemonurus longifolius; Stemonurus obscurinervis; Stemonurus petelotii; Stemonurus polymorphus; Stemonurus polymorphus var. acuminatus; Stemonurus polymorphus var. angustifolius; Stemonurus polymorphus var. longifolius; Stemonurus polymorphus var. oblongifolius; Stemonurus polymorphus var. ovalifolius; Stemonurus tetrandrus (homotypic)