Species in the genus Deinostema:

Deinostema adenocaulum / Marubanosawatougarashi
Deinostema violaceum / Sawatougarashi

Deinostema violaceum / Sawatougarashi サワトウガラシ

Deinostema violaceum is an annual occurrence in wetlands near ponds or marshes. Stems branch at the bases, measuring 10-20cm in height; occasionally, the bases fall and crawl on the ground. Leaves are 7-10mm long, with tips pointed. Flowers have 10-15cm-long peduncles, and sepals almost divide into five, measuring 4-6mm long. Corollas, purple to red-purple, are bilabiate; the lower lip's middle lobes are significantly large and cleft in two. Bloom time: August-October.