also: とうだいぐさか
noun
Euphorbiaceae; spurge family
Scientific name for a large family of flowering plants that includes spurges, poinsettias, and cassava. Used in botanical and taxonomic contexts.
トウダイグサ科にはポインセチアやキャッサバが含まれる。
The Euphorbiaceae family includes poinsettias and cassava.
Refers to the type genus Euphorbia (spurge) itself, while トウダイグサ科 is the family name.
From トウダイグサ (Euphorbia, the type genus) + 科 (family). The genus name トウダイグサ literally means 'lampstand plant', referring to the shape of its inflorescence.