'The floss of this weed, named for the white liquid in its stems, was used in lifebelts in World War II'
milkweed
BOTANY: The floss of this weed, named for the white liquid in its stems, was used in lifebelts in World War II
The floss of this weed, named for the white liquid in its stems, was used in lifebelts in World War II
The floss of this weed, named for the white liquid in its stems, was used in lifebelts in World War II
BOTANY
milkweed
BOTANY