noun
bead lily; Clintonia udensis
A perennial herb native to East Asia, known for its broad leaves and blue-black berries. The Japanese name ツバメオモト literally means 'swallow omoto' (omoto being a type of evergreen plant).
ツバメオモトは山地の林床に生える多年草です。
The bead lily is a perennial that grows on forest floors in mountainous areas.
秋になるとツバメオモトの実が青黒く熟します。
In autumn, the berries of the bead lily ripen to a blue-black color.
The name ツバメオモト combines ツバメ (swallow) and オモト (a type of evergreen plant, Rohdea japonica), likely from a perceived resemblance of the leaves or berries to those plants. The exact origin is uncertain.