also: おおばこか
noun
Plantaginaceae; plantain family
Taxonomic family name in botany; includes plants like plantains (オオバコ属).
オオバコ科の植物には、オオバコやヘラオオバコなどが含まれる。
Plants in the Plantaginaceae family include the common plantain and ribwort plantain.
オオバコ is the common plantain (Plantago asiatica), a representative genus in the family オオバコ科.
From オオバコ (plantain) + 科 (family, taxonomic rank). The kanji form 車前科 uses the Chinese-derived name 車前 for plantain.