Adiantum venustum (evergreen maidenhair, Himalayan maidenhair) is a species of fern in the genus Adiantum of the family Adiantaceae, native to China and the Himalayas. It is a slow to established plant that usually grows on moist rocks and soil with good amount of humus and dead leaves. It is very hardy, largely evergreen to -10 °C, when it becomes deciduous. It is also known as black Hansraj in India for its black stalks at the fronds. This plant has gained the Royal Horticultural Society's Award of Garden Merit.