Species in the genus Parentucellia:

Parentucellia viscosa / Seiyouhikiyomogi
　

Parentucellia viscosa / Seiyouhikiyomogi セイヨウヒキヨモギ

Parentucellia viscosa is an annual found on roadsides, riverbanks, etc. 50-70cm stems erecting straight up without branching, with alternate, relatively thick, simple leaves on them. Leaves lack leafstalks, the base embracing the stems. P. viscosa bears single 2-3.5cm wide, lip-shaped, yellow flowers at axils on the upper part of the stems. Reportedly, this species originates in Europe. Bloom time: May-June.