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).
The bead lily is a perennial that grows on forest floors in mountainous areas.
In autumn, the berries of the bead lily ripen to a blue-black color.
Katakana spelling is standard for this plant name; usually written in kana.
Kanji spelling is rare and may not be widely recognized; the plant is normally written in kana.
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.