Orontioideae is a

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...

of flowering plants in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Araceae The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also ...

. The subfamily consists of three genera namely, '' Lysichiton'' (one to two species of skunk cabbage from North America and Asia), '' Orontium'' (golden club, one living species from eastern North America and two extinct species known from fossils), and '' Symplocarpus'' (several species of skunk cabbage from North America and Asia). Characteristics of Orontioideae include medium-sized pollen grains and subterranean stems. Species in the subfamily have a base chromosome number of X=13.

References

* Mayo, S.J., Bogner, J., and Boyce, J.C. (1998) ''The genera of Araceae project'', Acta Botanica Yunnanica. * Bown, Deni (2000). ''Aroids: Plants of the Arum Family LLUSTRATED'. Timber Press. {{Taxonbar, from=Q7103802 Alismatales subfamilies