Pseudolysimachion schmidtianum ssp. senanense occurs
in weathered rocks, a volcanic rock referred to as dacite, in full
sunlight at the elevation of 1,100 meters from sea level in this
part of the country. It grows to approximately 15cm in height and
bears several bluish-purple flowers in the inflorescence; the
flowers bloom sideways. The 3-4cm long leaves are alternate,
double-serrate, the tips pointed. Flowers bloom in May-June.