Ruttya fruticosa.jpeg.jpg Lonchophylla robusta_nectivorous bat.jpg Ruellia neesiana_resupinate flowers2.jpg Heteradelphia paulojaegeria.jpg Bravasia integerrima_habit.jpg Ruellia insignis.jpg Ruellia caroliniensis.jpg

Acanth Fact of the Day

A major clade within Acanthaceae is the cystolith clade. Cystoliths are anatomical structures found in leaves and are thought to be composed of calcium carbonate or calcium oxalate. Their function is unknown.
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