Strobilanthes dyerianus_reduced filament curtain.jpg Discliptera_sexangularis.jpg Ruellia lactea_rosette form.jpg Justicia sp.jpg Ruellia bourgaei_pollen.jpg Ruellia ochroleuca2.jpg Eranthemum nervosum.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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