noun
sweet autumn clematis; Clematis terniflora
A climbing plant with small, fragrant white flowers that bloom in late summer to autumn. The name literally means 'hermit grass'.
庭のフェンスにセンニンソウが絡まっている。
Sweet autumn clematis is twining around the garden fence.
センニンソウは秋に白い花をたくさん咲かせる。
Sweet autumn clematis produces many white flowers in autumn.
クレマチス is the general term for clematis, while センニンソウ specifically refers to Clematis terniflora, a species native to East Asia.
The name 仙人草 (hermit grass) likely comes from the fluffy seed heads that resemble an immortal's beard. The exact origin is uncertain.