Notes For Reference:-

Species, Varieties, or Forms in the Genus Plantago:

Plantago asiatica / Oobako
Plantago camtschatica / Ezooobako
Plantago lanceolata / Heraoobako
Plantago major. var. japonica / Touoobako
　

Plantago lanceolata / Heraoobako ヘラオオバコ

Plantago lanceolata, an annual European herb, grows wild on roadsides, wastelands, or grasslands in various districts. Leave a measure of 10-20cm in length, 1.5-3cm in width, in the shape of a thin spatula, with sparse, long, light brown hairs on the back sides and petioles. Through the leaves, flower stalks 20-70cm long emerge erect, bearing many small flowers in a raceme. The inflorescences are 1-1.7cm wide, thick, and with prominent, long stamens. Bloom time: June-August.