Ophiopogon japonicus (dwarf lilyturf,[1] mondograss, fountainplant, monkeygrass; Japanese: リュウノヒゲ ryu-no-hige ("dragon's beard") or ジャノヒゲ ja-no-hige ("snake's beard") is a species of Ophiopogon native to China, India, Japan, Nepal, and Vietnam.

The flowers are white through pale lilac, borne in a short raceme on a 5- to 1-cm stem.

[2] Underground, this species has large stolons with tuberous roots.

[3] It is grown as an ornamental plant, providing excellent groundcover.

According to the "Chinese Herbal Medicine Materia Medica", the herb is sweet, slightly bitter, and slightly cold; enters the heart, lung, and stomach channels; nourishes the yin of the stomach, spleen, heart, and lungs; and clears heat and quiets irritability.