A window in a leafSourced
Buried leaves admit sunlight through translucent tops
Much of a Lithops leaf remains below ground. A translucent upper surface, called a leaf window, lets light enter the interior for photosynthesis. Its stone-like appearance comes with a way to receive sunlight without exposing the entire leaf above the soil.
The hidden tissue has a small entrance for light.
Summary / translation: Unbubly · CC BY-SA 4.0
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Lithops · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-05