Spathiphyllum is a genus of about 60 species of monocotyledonous flowering plants in the family Araceae, native to tropical regions of the Americas and southeastern Asia. Certain species of Spathiphyllum are commonly known as spath or peace lilies.

They are evergreen herbaceous perennial plants with large leaves 12–65 centimetres (4.7–25.6 in) long and 3–25 centimetres (1.2–9.8 in) broad. The flowers are produced in a spadix, surrounded by a 10–30 centimetres (3.9–11.8 in) long, white, yellowish, or greenish spathe. The plant does not require large amounts of light or water to survive. It is most often grown as a houseplant. However, it can withstand the elements well enough to thrive when planted outdoors in hot and humid environments.

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