tread softly

/ˈtrɛd ˌsɔftli/
noun
  1. A plant with small, colorful flowers and a strong, unpleasant smell, also known as crown imperial or fritillary.
    • She planted tread-softly near the fence because of its unusual scent.
    • The tread-softly in the garden bloomed bright orange in the spring.
    • The tread-softly is also called the snake's head lily in some regions.
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