is a perennial herb inhabiting cliff rocks in valleys, rooting deep
in narrow clefts, in mountainous regions in the
east-to-middle-section of Shimane Pref. Stems, cylindrical, extend
erect or diagonally upwards, approximately 50cm in height. Leaves,
opposite in lower parts and partly alternate in upper portions, are
linear to linear oblong-lanceolate, the tips pointed, and the bases
taper toward petioles. Branch tops bear racemes, 5-10cm long, with
many blue-purple flowers in them; the racemes bend diagonally
upwards at approximately halfway. The flowers are cleft in four.
Stamens, two in number, are prominent: Bloom time: AUgust-September.