also: とちゅうか
Eucommiaceae (plant family)
A monotypic plant family containing only the hardy rubber tree (Eucommia ulmoides). Used in botanical and taxonomic contexts.
See also: トチュウ
The only extant plant in the family Eucommiaceae is Eucommia ulmoides, native to China.
Standard katakana spelling for the plant family name.
Kanji spelling using the ateji for the tree name; rarely used in modern botanical contexts.
From トチュウ (杜仲, the hardy rubber tree) + 科 (family). The tree name is of Chinese origin.